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2014-05-21target-i386: fix segment flags for SMM and VM86 modePaolo Bonzini5-12/+31
With the next patch, these need to be correct or VM86 tasks have the wrong CPL. The flags are basically what the Intel VMX documentation say is mandatory for entry into a VM86 guest. For consistency, SMM ought to have the same flags except with CPL=0. Tested-by: Kevin O'Connor <kevin@koconnor.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-21target-i386: Fix vm86 mode regression introduced in fd460606fd6f.Kevin O'Connor1-5/+6
Commit fd460606fd6f moved setting of eflags above calls to cpu_x86_load_seg_cache() in seg_helper.c. Unfortunately, in do_interrupt_protected() this moved the clearing of VM_MASK above a test for it. Fix this regression by storing the value of VM_MASK at the start of do_interrupt_protected(). Signed-off-by: Kevin O'Connor <kevin@koconnor.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-21kvm_stat: allow choosing between tracepoints and old statsPaolo Bonzini1-19/+41
The old stats contain information not available in the tracepoints. By default, keep the old behavior, but allow choosing which set of stats to present, or even both. Inspired by a patch from Marcelo Tosatti. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-21kvmclock: Ensure time in migration never goes backwardAlexander Graf1-0/+48
When we migrate we ask the kernel about its current belief on what the guest time would be. However, I've seen cases where the kvmclock guest structure indicates a time more recent than the kvm returned time. To make sure we never go backwards, calculate what the guest would have seen as time at the point of migration and use that value instead of the kernel returned one when it's more recent. This bases the view of the kvmclock after migration on the same foundation in host as well as guest. Signed-off-by: Alexander Graf <agraf@suse.de> Cc: qemu-stable@nongnu.org Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-15Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-s390-20140515' into ↵Peter Maydell4-312/+455
staging tcg/s390 updates # gpg: Signature made Thu 15 May 2014 17:24:40 BST using RSA key ID 4DD0279B # gpg: Can't check signature: public key not found * remotes/rth/tags/pull-tcg-s390-20140515: tcg-s390: Implement direct chaining of TBs tcg-s390: Don't force -march=z990 tcg-s390: Improve setcond tcg-s390: Allow immediate operands to add2 and sub2 tcg-s390: Implement tcg_register_jit tcg-s390: Use more risbg in the tlb sequence tcg-s390: Move ldst helpers out of line tcg-s390: Convert to new ldst opcodes tcg-s390: Integrate endianness into TCGMemOp tcg-s390: Convert to TCGMemOp tcg-s390: Fix off-by-one in wraparound andi Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-15Merge remote-tracking branch 'remotes/kraxel/tags/pull-roms-2' into stagingPeter Maydell18-2/+5
seabios: update to 1.7.5-rc1 ipxe: update to current git # gpg: Signature made Thu 15 May 2014 13:29:37 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/kraxel/tags/pull-roms-2: ipxe: update to current git seabios: update to 1.7.5-rc1 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-15Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell1-1/+1
virtio update looks like a quiet week minor bugfix in virtio by myself Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Tue 13 May 2014 14:37:23 BST using RSA key ID D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" * remotes/mst/tags/for_upstream: virtio: allow mapping up to max queue size Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-15Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140515' ↵Peter Maydell70-234/+171
into staging migration/next for 20140515 # gpg: Signature made Thu 15 May 2014 02:32:25 BST using RSA key ID 5872D723 # gpg: Can't check signature: public key not found * remotes/juanquintela/tags/migration/20140515: usb: fix up post load checks migration: show average throughput when migration finishes savevm: Remove all the unneeded version_minimum_id_old (rest) savevm: Remove all the unneeded version_minimum_id_old (usb) Split ram_save_block arch_init: Simplify code for load_xbzrle() Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-15tcg-s390: Implement direct chaining of TBsRichard Henderson2-1/+12
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Don't force -march=z990Richard Henderson1-2/+2
While we still require the LONG DISPLACEMENT facility, defaults have moved on since then. Don't override the system compiler, whose default may be set to z9-109 or later. Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15Merge remote-tracking branch 'remotes/rth/fix-mov' into stagingPeter Maydell1-8/+11
* remotes/rth/fix-mov: tcg: Fix tcg_reg_alloc_mov vs no-op truncation Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-15Merge remote-tracking branch ↵Peter Maydell80-657/+905
'remotes/pmaydell/tags/pull-target-arm-20140513' into staging target-arm queue: * update libvixl to 1.4 * remove version_minimum_id_old from ARM devices * stellaris_enet tx/rx/migration overhaul * various minor fixes for coverity issues # gpg: Signature made Tue 13 May 2014 16:25:12 BST using RSA key ID 14360CDE # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" * remotes/pmaydell/tags/pull-target-arm-20140513: hw/arm/omap_gpmc: Avoid buffer overrun filling prefetch FIFO hw/arm/stellaris: Correct handling of GPTM TAR register hw/timer/exynos4210_mct: Avoid overflow in exynos4210_ltick_recalc_count hw/dma/omap_dma: Add (uint32_t) casts when shifting uint16_t by 16 hw/arm/omap1: Avoid unintended sign extension writing omap_rtc YEARS_REG hw/net/cadence_gem: Remove dead code hw/intc/allwinner-a10-pic: Add missing 'break' target-arm/helper.c: Don't flush the TLB if SCTLR is rewritten unchanged hw/net/stellaris_enet: Convert to vmstate hw/net/stellaris_enet: Get rid of rx_fifo pointer hw/net/stellaris_enet: Fix debug format strings hw/net/stellaris_enet: Correctly implement the TR and THR registers hw/net/stellaris_enet: Rewrite tx fifo handling code hw/net/stellaris_enet: Correct handling of packet padding hw/net/stellaris_enet: Restructure tx_fifo code to avoid buffer overrun savevm: Remove all the unneeded version_minimum_id_old (arm) disas/libvixl: Update to libvixl 1.4 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-15Merge remote-tracking branch 'remotes/kvm/uq/master' into stagingPeter Maydell27-202/+242
* remotes/kvm/uq/master: pc: port 92 reset requires a low->high transition cpu: make CPU_INTERRUPT_RESET available on all targets apic: do not accept SIPI on the bootstrap processor target-i386: preserve FPU and MSR state on INIT target-i386: fix set of registers zeroed on reset kvm: forward INIT signals coming from the chipset kvm: reset state from the CPU's reset method target-i386: the x86 CPL is stored in CS.selector - auto update hflags accordingly. target-i386: set eflags prior to calling cpu_x86_load_seg_cache() in seg_helper.c target-i386: set eflags and cr0 prior to calling cpu_x86_load_seg_cache() in smm_helper.c target-i386: set eflags prior to calling svm_load_seg_cache() in svm_helper.c pci-assign: limit # of msix vectors pci-assign: Fix a bug when map MSI-X table memory failed kvm: make one_reg helpers available for everyone target-i386: Remove unused data from local array Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-15Merge remote-tracking branch 'remotes/rth/tags/pull-tgt-i386-20140512' into ↵Peter Maydell1-9/+31
staging Fix BT zero flag for new Intel manuals # gpg: Signature made Mon 12 May 2014 22:26:01 BST using RSA key ID 4DD0279B # gpg: Can't check signature: public key not found * remotes/rth/tags/pull-tgt-i386-20140512: target-i386: Preserve the Z bit for bt/bts/btr/btc Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-15Revert "iotests: Use configured python"Peter Maydell10-70/+43
This reverts commit f915db07ef9c368ea6db6430256de064fdd1525f. This commit is broken because it does not account for the build tree and the source tree being different, and can cause build failures for out-of-tree builds. Revert it until we can identify a better solution to the problem. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1400153676-30180-1-git-send-email-peter.maydell@linaro.org Acked-by: Kevin Wolf <kwolf@redhat.com>
2014-05-15ipxe: update to current gitGerd Hoffmann8-1/+3
Now that ipxe has separate settings for load / boot banner timeouts re-enable the boot banner while keeping the load banner turned off, so we don't add a delay to non-pxe boots. git shortlog: Adrian Jamróz (2): [rhine] Rewrite VIA Rhine driver [velocity] Rewrite VIA Velocity driver Alex Williamson (4): [romprefix] Allow ROM banner timeout to be configured independently [autoboot] Enable infrastructure to specify an autoboot device location [prefix] Allow prefix to specify a PCI autoboot device location [romprefix] Store boot bus:dev.fn address as autoboot device location Alexander Chernyakhovsky (1): [ocsp] Handle OCSP responses that don't provide certificates Bo Yang (1): [build] Avoid strict-aliasing warning for gcc 4.3 Brandon Penglase (1): [build] Add vmware build target Christian Hesse (2): [build] Update build system for Syslinux 6.x [build] Fix LABEL name for .liso images Daniel P. Berrange (1): [zbin] Fix size used for memset in alloc_output_file Frediano Ziglio (1): [romprefix] Fix incorrect pointer offset in undiloader.S Kevin Tran (1): [tg3] Fix various tg3 issues Marin Hannache (8): [linux] Add missing #include <stddef.h> [legal] Add FILE_LICENCE for valgrind headers [legal] Add FILE_LICENCE for core/errno.c [legal] Add FILE_LICENCE for ath9k driver headers [legal] Add missing FILE_LICENCE declarations [cmdline] Add "poweroff" command [nfs] Add support for NFS protocol [nfs] Fix an issue with the selection of a local port Michael Brown (363): [netdevice] Separate VLAN support from presence of VLAN-supporting drivers [undi] Work around specific devices with known broken interrupt behaviour [menu] Prevent character code zero from acting as a shortcut key [menu] Prevent separators with shortcut keys from being selected [tftp] Allow TFTP block size to be controlled via the PXE TFTP API [pcbios] Add extra debugging messages when unhiding iPXE from memory [nbiprefix] Set up real-mode stack before jumping to .text16 [prefix] Use %cs as implicit parameter to uninstall() [pcbios] Inhibit all calls to INT 15,e820 and INT 15,e801 during POST [romprefix] Display only one "Ctrl-B" prompt per PCI device during POST [efi] Update to latest EDK2 headers [autoboot] Split main control flow out of main() into a new function ipxe() [efi] Add last_opened_snpdev() [efi] Expose downloaded images via EFI_SIMPLE_FILE_SYSTEM_PROTOCOL [efi] Add our own EFI_LOAD_FILE_PROTOCOL implementation [efi] Fix building with newer binutils [lkrnprefix] Allow relocation when no initrd is present [efi] Fix minor typos in efi_image.c [efi] Add EFI-specific debugging macros [int13] Split out ISO9660 and El Torito definitions to separate header files [smbios] Provide SMBIOS version number via smbios_version() [smbios] Mangle UUIDs for SMBIOS version 2.6 and newer [dhcp] Use PXE byte ordering for UUID in DHCP option 97 [uuid] Abstract UUID mangling code out to a separate uuid_mangle() function [efi] Provide efi_guid_ntoa() for printing EFI GUIDs [efi] Add "reboot" command for EFI [cmdline] Add ability to perform a warm reboot [efi] Enable "cpuid" command by default for EFI [cs89x0] Remove conflicting macro definitions [igbvf] Remove conflicting macro definitions [prism2] Use standard type names [efi] Fetch device path for loaded image during initialisation [settings] Expose build architecture and platform via settings [bios] Fix screen clearing on buggy BIOSes [intel] Remove hardcoded offsets for descriptor ring registers [intel] Expose functionality to be shared with intelx driver [intel] Add intelx driver for Intel 10 Gigabit Ethernet NICs [efi] Remove obsolete EFI I/O implementation using EFI_CPU_IO_PROTOCOL [libc] Use __einfo() tuple as first argument to EUNIQ() [libc] Redefine low 8 bits of error code as "platform error code" [efi] Perform meaningful error code conversions [efi] Add sample platform-generated error disambiguations [netdevice] Use link-layer address as part of RNG seed [build] Allow sparse to find compiler.h [build] Define __WINT_TYPE__ if necessary [build] Allow sparse to be invoked via "make C=1" [build] Avoid sparse undeclared symbol warning for PROVIDE_SYMBOL() [process] Mark process descriptor as static in PERMANENT_PROCESS [realtek] Print bad MAC address in debug message when inferring no EEPROM [build] Use -Wno-decl when running sparse [build] Fix uses of literal 0 as a NULL pointer [build] Fix dubious uses of bitwise operators [build] Default to short wchar_t in stddef.h [realtek] Use ID word to detect EEPROM presence [errdb] Strip platform error code for non-platform-generated errors [pxe] Convert external PXE API errors into iPXE platform-generated errors [realtek] Allow reaction time between writing RTL_CAPR and reading RTL_CR [romprefix] Report failure cause when unable to open payload [realtek] Ensure EEPROM writes reach chip before starting udelay() [dhcp] Remove obsolete bootp.h header [netdevice] Add netdev_tx_defer() to allow drivers to defer transmissions [realtek] Defer packets when no transmit descriptors are available [settings] Eliminate settings "tag magic" [smbios] Allow access to unreferenced SMBIOS strings [smbios] Allow access to multiple instances of SMBIOS structures [crypto] Report meaningful error when certificate chain validation fails [build] Use $(eval) if available [build] Provide "allXXXs" targets for all media on all platforms [build] Add efidrv.cab target for UEFI Secure Boot signing [netdevice] Add "chip" setting [netdevice] Reset MAC address when asked to clear the "mac" setting [realtek] Fix reopening of legacy-mode 8139 NIC [crypto] Accept OCSP responses containing multiple certificates [bzimage] Align initrd images to page boundary [bzimage] Fix spurious uninitialised-variable warning on some gcc versions [build] Work around bug in gcc >= 4.8 [autoboot] Use next-server from filename's settings block [tcp] Do not send RST for unrecognised connections [tcp] Fix comment to match code behaviour [test] Add self-tests for base16 [base16] Generalise base16_decode() to hex_decode() [settings] Use hex_decode() to parse hex settings [settings] Add "hexraw" setting type [netdevice] Add "bustype" and "busloc" settings [settings] Add "busdevfn" setting type [linux] Add support for accessing PCI configuration space via /proc/bus/pci [settings] Add config/settings.h [settings] Expose PCI configuration space via settings mechanism [settings] Make "netX" settings block function as a symbolic link [cmdline] Accept "netX" in iPXE commands [lotest] Include sequence number within loopback test packets [intel] Incorporate ring producer and consumer counters in diagnostics [base16] Ensure base16_encode() always terminates its result string [realtek] Report RX error detail in debug messages [script] Allow for backslash continuation of script lines [settings] Add support for navigation keys in "config" user interface [realtek] Allow extra space in RX buffers [ifmgmt] Avoid relying on global variable within ifcommon_exec() [script] Avoid trying to read final character of a zero-length string [legal] Add missing FILE_LICENCE declarations [build] Fix %.licence build target [settings] Clarify usage of the term "named setting" [settings] Avoid potentially large stack allocations [settings] Remove temporary name buffer parameter from parse_setting_name() [settings] Remove default_type parameter from parse_setting_name() [settings] Expose parse_setting_name() [settings] Change "not-found" semantics of fetch_setting_copy() [settings] Add fetchf_setting_copy() [settings] Eliminate call to fetchf_named_setting() in expand_settings() [settings] Eliminate call to store_named_setting() in nslookup.c [settings] Remove now-unused store_named_setting() [parseopt] Allow parsed option to be modified [parseopt] Move parse_settings() to parseopt.c [parseopt] Add parse_setting() [settings] Eliminate call to storef_named_setting() in choose_exec() [settings] Eliminate calls to {fetch,store}f_named_setting() in NVO commands [settings] Remove now-unused fetchf_named_setting() and storef_named_setting() [script] Allow initial whitespace on lines containing labels [script] Allow commands following a script label [settings] Introduce the generalised concept of a numeric setting [cmdline] Add "inc" command [pci] Add pci_find_next() to iterate over existent PCI devices [cmdline] Add "pciscan" command to allow iteration over PCI devices [udp] Move high-frequency debug messages to DBGLVL_EXTRA [ipv6] Rename sin_{family,port} to sin6_{family,port} in struct sockaddr_in6 [tcpip] Allow binding to unspecified privileged ports (below 1024) [settings] Expose CPUID instruction via settings mechanism [test] Add self-tests for snprintf() [settings] Allow numeric_setting_value() to handle long setting values [settings] Expose memory map via settings mechanism [params] Add support for the general concept of a form parameter list [cmdline] Add "params" and "param" commands to manage form parameter lists [uri] Allow URIs to incorporate a parameter list [http] Add support for HTTP POST [settings] Make built-in settings a linker table [linux] Give tap devices a name and bus type [ipv4] Generalise fragment reassembly mechanism [netdevice] Increase maximum network-layer address length [netdevice] Add concept of a network device index [netdevice] Add method for generating EUI-64 address from link-layer address [ethernet] Add support for generating multicast hash for IPv6 addresses [linux] Apply MAC address prior to registering network device [tcpip] Pass through network device to transport layer protocols [neighbour] Generalise concept of neighbour discovery [ipv4] Abstract out protocol-specific portions of "route" command [ipv6] Replace IPv6 stack [ipv6] Fix uninitialised-variable warning [tcp] Reduce path MTU to 1280 bytes [ipv6] Add inet6_aton() [build] Work around bug in gcc >= 4.8 [neighbour] Add nstat() function to print out neighbour table [cmdline] Add "nstat" command [tcp] Add AF_INET6 socket opener [udp] Add AF_INET6 socket opener [netdevice] Add find_netdev_by_index() [socket] Add concept of a generalised socket address converter [ipv4] Add IPv4 socket address converter [ipv6] Add IPv6 socket address converter [resolv] Use sock_aton() to allow parsing of arbitrary numeric addresses [icmp] Add support for sending ICMP echo requests [ping] Add concept of a ping socket [ping] Add generic ping mechanism [ping] Add top-level ping() function to ping a host [cmdline] Add "ping" command [ipv6] Handle IPv6 option length correctly [ipv6] Extract link layer addresses from router advertisements [ipv6] Support stateless address autoconfiguration (SLAAC) [ipv6] Treat sin6_scope_id consistently [ipv6] Automatically choose source for link-local and multicast destinations [pxe] Always retrieve cached DHCPACK and apply to relevant network device [ipv6] Add ndp_tx_router_solicitation() to send router solicitations [parseopt] Add parse_timeout() [netdevice] Make all net_driver methods optional [interface] Default to calling intf_restart() in response to intf_close() [job] Allow job_progress() to return an ongoing job status code, if known [monojob] Add timeout parameter to monojob_wait() [monojob] Report ongoing job status as overall return status on timeout [cmdline] Rewrite "sync" command to use monojob_wait() [autoboot] Fix shell banner timeout [ifmgmt] Rewrite iflinkwait() to use monojob_wait() [cmdline] Allow "if<xxx>" commands to take options [netdevice] Add generic concept of a network device configurator [dhcp] Add DHCP network device configurator [parseopt] Add parse_netdev_configurator() [ifmgmt] Add ifconf() to carry out network device configuration [autoboot] Use ifconf() to configure network device [cmdline] Add "ifconf" command [cmdline] Make "dhcp" command a synonym for "ifconf" [dhcp] Remove obsolete dhcp() function [ipv6] Add IPv6 network device configurator [cmdline] Generate command option help text automatically [pxe] Ensure cached DHCPACK is retrieved prior to network device creation [base16] Fix comparison of signed and unsigned integers [settings] Move user-class setting from dhcp.c to settings.c [ipv6] Use given source address only if it is not the unspecified address [ipv6] Add "ipv6" setting type [dhcpv6] Add basic support for stateful and stateless DHCPv6 [ipv6] Separate the concepts of prefix and address creation [dhcpv6] Allow stateful DHCPv6 to apply obtained IPv6 addresses [test] Include failing code within failed test result output [main] Defer "initialising devices" message until initialising devices [console] Pass escape sequence context to ANSI escape sequence handlers [pixbuf] Add generic concept of a pixel buffer [image] Allow for non-executable image formats [image] Add image_pixbuf() to create pixel buffer from image [pnm] Add support for PNM images [mucurses] Use "<ESC>[2J" ANSI escape sequence to clear screen [console] Allow console input and output to be disabled independently [console] Add concept of generic console configuration [cmdline] Add "console" command to configure console [fbcon] Add generic concept of a frame buffer console [vesafb] Add VESA frame buffer console [vesafb] Include raw status value within VBE error messages [vesafb] Skip modes for which we cannot get mode information [vesafb] Return meaningful error when no suitable mode is found [vesafb] Select an optimal mode, rather than the first acceptable mode [build] Fix building on OpenBSD 5.4 [console] Allow '?' as an intermediate byte in ANSI escape sequences [mucurses] Implement curs_set() to control cursor visibility [settings] Hide cursor when not actively editing a setting [menu] Hide cursor when displaying menu [fbcon] Add support for displaying a cursor [settings] Explicitly separate the concept of a completed fetched setting [settings] Allow for IPv6 setting types in non-IPv6 builds [settings] Add fetch_ipv6_setting() [dns] Add support for resolving IPv6 addresses via AAAA records [socket] Ensure socket address structure sizes are fixed [syslog] Add support for IPv6 syslog server [ipv6] Add support for resolving IPv6 addresses via the "nslookup" command [linux] Provide access to SMBIOS via /dev/mem [dhcpv6] Use DUID-UUID form of client DUID [settings] Force settings into alphabetical order within sections [settings] Allow for multiple definitions of each predefined setting [settings] Merge SETTING_IPv4 and SETTING_IPv6 [dhcpv6] Add DHCPv6 "filename" setting [ipv6] Expose NDP-provided settings (including the DNS server) [vesafb] Work around data corruption bug in bochs/qemu VBE implementation [settings] Adapt user interface to fit display size [login] Adapt user interface to fit display size [menu] Adapt user interface to fit display size [console] Allow consoles to update the recorded console size [fbcon] Update the console width and height after changing mode [lkrnprefix] Include iPXE version string in image header [fbcon] Always draw cursor using current foreground and background colours [console] Add centralised concept of colours and colour pairs [mucurses] Use centralised concept of colour pairs [cmdline] Add the "colour" and "cpair" commands [console] Add concept of a "magic" colour [vesafb] Set "magic" colour to transparent when a background picture is used [build] Remove obsolete check for GNU as version 2.9.1 [ipv6] Fix compilation under FreeBSD [build] Build ROMs used by qemu and VMware as part of "make all" [libc] Add isprint() [test] Add okx() macro taking an explicit file name and line number [deflate] Add support for DEFLATE decompression [deflate] Fix literal data length calculation [libc] Add abs() [uaccess] Add memcmp_user() [test] Rewrite pnm_ok() using okx() [test] Generalise pnm_ok() to pixbuf_ok() [png] Add support for PNG images [vesafb] Handle failures from fbcon_init() [fbcon] Centre background picture on console [fbcon] Allow for an arbitrary margin around the text area [vesafb] Allow for an arbitrary margin around the text area [cmdline] Rename "console" command's --bpp option to --depth [cmdline] Add margin options to the "console" command [fbcon] Allow ANSI CUP with missing arguments [cmdline] Always clear screen after reconfiguring console [intel] Add some missing PCI IDs [dns] Support DNS search lists [dns] Update end-of-name pointer after processing CNAME record [dhcp] Copy exactly the required length when resizing DHCP options [settings] Remove "uristring" setting type [params] Use reference counters for form parameter lists [uri] Refactor URI parsing and formatting [image] Ensure every image has a fully resolved URI [tcpip] Add IP statistics collection as per RFC 4293 [cmdline] Add the "ipstat" command [prefix] Ignore PCI autoboot device location if set to 00:00.0 [tcpip] Provide tcpip_netdev() to determine the transmitting network device [tcpip] Provide tcpip_mtu() to determine the maximum transmission unit [tcp] Calculate correct MSS from peer address [bzimage] Report exact initrd length via bzImage header [realtek] Include link status register details in debug messages [romprefix] Do not clobber stack segment when returning to BIOS [netdevice] Mark devices as open before calling open() method [tcp] Update window even if ACK does not acknowledge new data [linux] Avoid starting currticks() from zero every time [http] Use a retry timer to trigger retried requests [http] Automatically retry request on a 503 Service Unavailable [mii] Add mii_dump() to dump all MII registers [realtek] Dump all MII register contents when link status changes [monojob] Reset timeout when progress is made [image] Add "--timeout" parameter to image downloading commands [efi] Allow for 64-bit EFI_STATUS codes [efi] Allow driver to be unloaded [efi] Connect driver to devices as part of installation [console] Fix display of characters with top bit set [lotest] Allow loopback testing on shared networks [netdevice] Notify upper-layer drivers when RX processing is (un)frozen [efi] Avoid accidentally calling main() twice [efi] Unload our own image before exiting UEFI application [efi] Disable SNP devices when running iPXE as the application [realtek] Add ability to dump all internal registers [realtek] Clear bit 24 of RCR [bios] Fix screen clearing on even more buggy BIOSes [http] Accept Content-Length header with trailing whitespace [crypto] Remove dynamically-allocated storage for certificate name [crypto] Remove dynamically-allocated storage for certificate OCSP URI [build] Remove long-obsolete mechanism for wrapping embedded images [build] Disable ccache for all relevant build targets [build] Add dependency of generated files upon Makefile [crypto] Add pubkey_match() to check for matching public/private key pairs [crypto] Generalise X.509 cache to a full certificate store [crypto] Use fingerprint when no common name is available for debug messages [crypto] Allow signed timestamp error margin to be configured at build time [test] Rewrite X.509 tests using okx() [test] Rewrite CMS tests using okx() [test] Add tests for x509_check_name() [test] Add subject alternative names to X.509 server test certificate [crypto] Add support for subjectAltName and wildcard certificates [crypto] Allow wildcard matches on commonName as well as subjectAltName [intel] Avoid completely filling the TX descriptor ring [test] Rewrite TCP/IP tests using okx() [test] Add self-tests for flsl() [libc] Add inline assembly implementation of flsl() using BSR instruction [test] Add tests for 64-bit division [build] Fix __libgcc attribute for recent gcc versions [test] Check for correct -mrtd assumption on libgcc arithmetic functions [libc] Add isqrt() function to find integer square roots [libc] Add flsll() [profile] Add generic profiling infrastructure [cmdline] Add "profstat" command to display profiling statistics [netdevice] Profile common operations [intel] Profile common virtual machine operations [intel] Push new RX descriptors in batches [librm] Use genuine real mode to accelerate operation in virtual machines [ipv4] Profile transmit and receive datapaths [tcp] Profile transmit and receive datapaths [http] Profile receive datapath [downloader] Profile receive datapath [build] Allow for a debug level of zero [librm] Allow interrupts in protected mode [comboot] Use built-in interrupt reflector [pcbios] Do not switch to real mode to check for timer interrupt [pcbios] Do not switch to real mode to sleep the CPU [test] Print out profiling statistics after a successful test run [librm] Add a profiling self-test for measuring mode transition times [librm] Add meaningful labels at section changes [librm] Speed up protected-to-real mode transition under KVM [librm] Speed up real-to-protected mode transition under KVM [librm] Speed up protected-mode calls under KVM [profile] Provide methods for profiling individual stages of operations [librm] Add profiling self-tests for complete real_call and prot_call cycles [pxe] Profile all PXE API calls [pxe] Profile UNDI transmit datapath [pxe] Work around missing PXENV_UNDI_OPEN only when necessary [undi] Profile all PXE API calls [undi] Profile transmit and receive datapaths [undi] Report any PXENV_UNDI_ISR errors via netdev_rx_err() [undi] Do not switch to real mode to check for NIC interrupt [undi] Place an upper limit on the number of PXENV_UNDI_ISR calls per poll Peter Pickford (1): [serial] Enable UART FIFOs Robin Smidsrød (2): [settings] Add "version" builtin setting [build] Include ipxe.pxe in default build Stefan Hajnoczi (2): [netdevice] Add vlan_tag() to get the VLAN tag of a network device [iscsi] Include 802.1Q VLAN identifier in iBFT Thomas Miletich (3): [3c90x] Stall upload engine before setting RX ring address [3c90x] Don't round up transmit packet length [3c90x] Fix High-MTU packet reception lolipop (1): [intel] Add Intel I217 Gigabit Ethernet PCI ID Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-15seabios: update to 1.7.5-rc1Gerd Hoffmann10-1/+2
Code grew a bit, had to disable CONFIG_USB_UAS to make the bios for the old machine types continue top fit into 128k. git shortlog since 1.7.4: Eric Northup (2): init_virtio_blk, init_virtio_scsi: reset HBA on error vp_init_simple: enable PCI bus-mastering before relying on DMA. Gabriel L. Somlo (1): SMBIOS: Check for aggregate tables & entry point in fw_cfg Gerd Hoffmann (4): smbios: catch zero-length strings pci: improve io address space allocation xhci: allocate scratch pad buffers vga: rework bar detection, add virtio-vga Johannes Krampf (5): build: Remove unneccesary semicolons from acpi_extract scripts. build: Make print statements in scripts python3 compatible. build: Be explicit that we want integers when dividing for python3 compat. build: Avoid sort() on unordered classes for python3 compatibility. build: Be careful with unicode and byte strings for python3 compatibility. Kevin O'Connor (79): build: Don't trash the .config file when src/Kconfig changes. Remove the pmm handle argument from _malloc(). Clear the total block transfer count on error. Remove unnecesary updates of the disk op->count field. Always perform thread cleanup on MainThread stack. pvscsi: Don't store reference to struct pci_device. pvscsi: Always run entirely in 32bit mode. pvscsi: Remove use of LOWFLAT and GLOBALFLAT macros. usb: Replace EHCI to UHCI/OHCI synchronization with new scheme. Minor - pciinit.c - order header files and use static on local functions. Minor - fix misspelling in romfile.c comment. ehci: memset the qTD structures in ehci_alloc_intr_pipe build: Update kconfig to version in Linux 3.13. scripts: Allow encodeint.py to take integers in hex notation. coreboot: Support alternative locations for CBFS. debug: Add runtime option to not report the debug serial port to the OS. debug: Only call serial_debug_preinit() at startup. debug: Unify the SeaBIOS debug version banner. xhci: Use 64bit writes to ERDP register. xhci: Fix incorrect direction setting on status transmissions. xhci: Set the interval parameter on interrupt pipes. xhci: Verify PAGESIZE register before initializing driver. xhci: Allocate and free the xhci inctx structure on each use. xhci: Move set_address code from xhci_control to xhci_alloc_pipe. xhci: Eliminate 'struct xhci_device'. xhci: Support xhci controllers with 64 byte contexts. xhci: Allow the XHCI USB controller to be enabled for coreboot. xhci: Don't use a dummy endpoint count in configure command. xhci: Report the "protocol defined" and PSIC bits of extended capabilities. xhci: Support USB hubs on xhci controllers. Add call32_params() helper function. Add space between DTYPE_* definitions. xhci: Run the XHCI driver entirely in 32bit mode. Remove pci_writel() and pci_readl() functions. xhci: Check if scratch pad allocation fails. Increase maximum size of permanent high memory area. usb: USB 3 devices encode bMaxPacketSize0 field. usb: Move default pipe max packet size code from xhci to main code. xhci: Use the same endpoint initialization code in xhci_alloc_pipe() xhci: Add copyright notice to usb-xhci.c vgabios: Make sure exported structs use PACKED. vgabios: Simplify the bios save state area. vgabios: Simplify save/restore mechanism. vgabios: Attempt to detect old x86emu and force a fault. vgabios: Don't interpret TAB character. vgabios: Refactor write_teletype and write_chars. vgabios: Make sure stdvga_list_modes() doesn't overrun the buffer. coreboot: Add support for a "links" file to have aliases in CBFS. Enhance nullTrailingSpace() so that it can also skip leading spaces. coreboot: Move links file processing to its own function. vgabios: Fix PMM allocation request size. smbios: Default all values to zero. usb: Only disable HID devices if both USB_MOUSE and USB_KEYBOARD are off. Minor - fix some typos in comments. Replace CONFIG_THREAD_OPTIONROMS with a runtime config setting. acpi: Move acpi parsing logic from acpi.c to biostables.c / paravirt.c. smbios: Move smbios parsing logic from smbios.c to biostables.c. Move PirAddr definition from pirtable.c to biostables.c. Use biostables.c for copying bios tables even when generating them. Document no new changes to pirtable.c, mptable.c, acpi.c, and smbios.c. apm: Remove old Bochs mechanism for shutdown/suspend/standby. Minor - remove unused includes from pci.c. vgabios: Add option to control use of standard VGA IO ports. vgabios: Split vgafb_scroll() into separate move and clear functions. vgabios: Rewrite vgafb.c graphics operations to set of 4 standard operators. vgabios: Introduce text_address(). vgabios: Add support for manipulating framebuffers in high memory. Set the color attribute when calling vgabios print character. vgabios: PMM scan was incorrectly depending on a zero %ds segment. coreboot: Make coreboot table searching available to other code. vgabios: Initial support for coreboot native vga vgabios. Minor - replace some tab characters that slipped into the code. Factor out smbios table walking from display_uuid to smbios_next(). vgabios: Define PlatformRunningOn to make compile happy. If an int 1587 call is made from an option rom, stay in bigreal mode. xhci: Use msleep() instead of mdelay() for port status delay. build: Make sure romlayout.o is recompiled on Kconfig change. Fix int 1589 calls when CONFIG_ENTRY_EXTRASTACK is enabled. acpi: Fix acpi dsdt compile warning. Laszlo Ersek (1): init_virtio_scsi(): reset the HBA before freeing its virtio ring Marcel Apfelbaum (3): resume: restore piix pm config registers after resume hw/pci: reserve IO and mem for pci-2-pci bridges with no devices attached hw/pci: check if pci2pci bridges implement optional limit registers Roger Pau Monne (1): ld: don't hardcode "-melf_i386" Sander Eikelenboom (1): Prevent build failure by not splitting line in the middle of arguments to checkrom.py script Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-15tcg-s390: Improve setcondRichard Henderson1-6/+91
There are a variety of common cases for which we can use carry tricks to avoid a conditional branch. On very new hardware, use LOAD ON CONDITION instead of a conditional branch. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Allow immediate operands to add2 and sub2Richard Henderson1-12/+52
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Implement tcg_register_jitRichard Henderson1-7/+55
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Use more risbg in the tlb sequenceRichard Henderson1-21/+28
Elides two insns from the sequence. The resulting tlb compare sequence is satisfyingly minimal: risbg %r2,%r8,51,186,56 risbg %r3,%r8,61,178,0 cg %r3,904(%r10,%r2) lg %r2,920(%r10,%r2) jlh tlb_miss Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Move ldst helpers out of lineRichard Henderson1-92/+118
That is, the old LDST_OPTIMIZATION. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Convert to new ldst opcodesRichard Henderson2-116/+56
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Integrate endianness into TCGMemOpRichard Henderson1-64/+60
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Convert to TCGMemOpRichard Henderson1-46/+36
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-15tcg-s390: Fix off-by-one in wraparound andiRichard Henderson1-2/+2
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-14tcg: Fix tcg_reg_alloc_mov vs no-op truncationRichard Henderson1-8/+11
Commit af3cbfbe8018ccc16fb3a0048e928f66f0d05e87 hoisted some "common" loads of the temporary type, forgetting that the types could differ during truncating moves. This affects the correctness of the memory offset on big-endian hosts. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-14usb: fix up post load checksMichael S. Tsirkin1-2/+2
Correct post load checks: 1. dev->setup_len == sizeof(dev->data_buf) seems fine, no need to fail migration 2. When state is DATA, passing index > len will cause memcpy with negative length, resulting in heap overflow First of the issues was reported by dgilbert. Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-05-14migration: show average throughput when migration finishesPeter Lieven1-0/+5
currently the value of the throughput field contains whatever was the last calculated throughput shortly before the migration finished. This patch updates the post migration contents of the field to the average throughput. Signed-off-by: Peter Lieven <pl@kamp.de> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-05-14savevm: Remove all the unneeded version_minimum_id_old (rest)Juan Quintela60-147/+70
After previous Peter patch, they are redundant. This way we don't assign them except when needed. Once there, there were lots of case where the ".fields" indentation was wrong: .fields = (VMStateField []) { and .fields = (VMStateField []) { Change all the combinations to: .fields = (VMStateField[]){ The biggest problem (appart from aesthetics) was that checkpatch complained when we copy&pasted the code from one place to another. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-14savevm: Remove all the unneeded version_minimum_id_old (usb)Juan Quintela8-13/+11
After previous Peter patch, they are redundant. This way we don't assign them except when needed. Once there, there were lots of case where the ".fields" indentation was wrong: .fields = (VMStateField []) { and .fields = (VMStateField []) { Change all the combinations to: .fields = (VMStateField[]){ The biggest problem (appart from aesthetics) was that checkpatch complained when we copy&pasted the code from one place to another. Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2014-05-14Split ram_save_blockDr. David Alan Gilbert1-62/+79
ram_save_block is getting a bit too complicated, and does two separate things: 1) Finds a page to send 2) Sends the page (dealing with compression etc) Split into 'ram_save_page' to send the page and deal with compression (2) Rename remaining function to 'ram_find_and_save_block' Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-05-14arch_init: Simplify code for load_xbzrle()Chen Gang1-10/+4
For xbzrle_decode_buffer(), when decoding contents will exceed writing buffer, it will return -1, so need not check the return value whether large than writing buffer. And when failure occurs within load_xbzrle(), it always return -1 without any resources which need release. So can remove the related checking statements, and also can remove 'rc' and 'ret' local variables, Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-05-13Merge remote-tracking branch 'remotes/rth/fix-i386' into stagingPeter Maydell1-1/+1
* remotes/rth/fix-i386: exec-all.h: Use stl_le_p instead of stl_p patching x86 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-13exec-all.h: Use stl_le_p instead of stl_p patching x86Richard Henderson1-1/+1
We got the wrong version of stl_p, the one that bswaps as appropriate for the target. Since x86 is always little-endian, the "_le_" routine will resolve to what we want. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-05-13hw/arm/omap_gpmc: Avoid buffer overrun filling prefetch FIFOPeter Maydell1-0/+4
In fill_prefetch_fifo(), if the device we are reading from is 16 bit, then we must not try to transfer an odd number of bytes into the FIFO. This could otherwise have resulted in our overrunning the prefetch.fifo array by one byte. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-05-13hw/arm/stellaris: Correct handling of GPTM TAR registerPeter Maydell1-3/+10
We don't implement very much of the GPTM TAR register, and what we do is wrong. The "are we in RT mode?" field is in s->config, not s->control. Correct this, use LOG_UNIMP rather than hw_error() for the cases we don't support, and avoid an unlabelled fallthrough that makes Coverity complain. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-05-13hw/timer/exynos4210_mct: Avoid overflow in exynos4210_ltick_recalc_countPeter Maydell1-2/+2
Add casts to avoid potentially overflowing the multiplications of 32 bit quantities in exynos4210_ltick_recalc_count(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-05-13hw/dma/omap_dma: Add (uint32_t) casts when shifting uint16_t by 16Peter Maydell1-6/+6
Add missing (uint32_t) casts in cases where we're trying to put a uint16_t value into the top half of a 32-bit field. These were already present in some but not all places. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-05-13hw/arm/omap1: Avoid unintended sign extension writing omap_rtc YEARS_REGPeter Maydell1-2/+2
When writing to the YEARS_REG register, if the year value is 99 then the multiplication by 31536000 will overflow into the sign bit of a 32 bit value and then be erroneously sign-extended if time_t is 64 bits. Add a cast to avoid this. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-05-13hw/net/cadence_gem: Remove dead codePeter Maydell1-7/+1
Commit 191946c moved the code to handle padding to minimum length from after the handling of the CRC to before it. This means that the CRC code doesn't need to cope with the possibility that the size is less than 60; remove this dead code. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-05-13hw/intc/allwinner-a10-pic: Add missing 'break'Peter Maydell1-0/+1
Add missing 'break' after handling of AW_A10_PIC_BASE_ADDR write. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-05-13target-arm/helper.c: Don't flush the TLB if SCTLR is rewritten unchangedPeter Maydell1-0/+7
Linux makes a habit of writing the same value to the SCTLR that it already holds. In a sample boot of the kernel to a shell prompt it wrote the SCTLR with the value it already held 325465 times, and wrote different values just 3 times. Skip flushing the TLB if the SCTLR value isn't actually being changed; this speeds up my sample boot by 3-5%. Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com> Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1399560029-19007-1-git-send-email-peter.maydell@linaro.org
2014-05-13hw/net/stellaris_enet: Convert to vmstatePeter Maydell1-68/+80
Convert this device to use vmstate for its save/load, including providing a post_load function that sanitizes inbound data to avoid possible buffer overflows if it is malicious. The sanitizing fixes CVE-2013-4532 (though nobody should be relying on the security properties of most of the unmaintained ARM board models anyway, and migration doesn't actually work on this board due to issues in other device models). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
2014-05-13hw/net/stellaris_enet: Get rid of rx_fifo pointerPeter Maydell1-21/+19
The rx_fifo pointer is awkward to migrate, and is actually redundant since it is always possible to determine it from the current rx[].len/.data and rx_fifo_len. Remove both rx_fifo and rx_fifo_len from the state, replacing them with a simple rx_fifo_offset which points at the current location in the RX fifo. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2014-05-13hw/net/stellaris_enet: Fix debug format stringsPeter Maydell1-3/+3
Fix various debug format strings which were incorrect for the data type, so that building with debug enabled is possible. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2014-05-13hw/net/stellaris_enet: Correctly implement the TR and THR registersPeter Maydell1-2/+15
Packet transmission for the stellaris ethernet controller can be triggered in one of two ways: * by setting a threshold value in the THR register; when the FIFO fill level reaches the threshold, the h/w starts transmitting. Software has to finish filling the FIFO before the transmit process completes to avoid a (silent) underrun * by software writing to the TR register to explicitly trigger transmission Since QEMU transmits packets instantaneously (from the guest's point of view), implement "transmit based on threshold" with our existing mechanism of "transmit as soon as we have the whole packet", with the additional wrinkle that we don't transmit if the packet size is below the specified threshold, and implement "transmit by specific request" properly. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2014-05-13hw/net/stellaris_enet: Rewrite tx fifo handling codePeter Maydell1-42/+77
The datasheet is clear that the frame length written to the DATA register is actually stored in the TX FIFO; this means we don't need to keep both tx_frame_len and tx_fifo_len state separately. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2014-05-13hw/net/stellaris_enet: Correct handling of packet paddingPeter Maydell1-1/+1
The PADEN bit in the transmit control register enables padding of short data packets out to the required minimum length. However a typo here meant we were adjusting tx_fifo_len rather than tx_frame_len, so the padding didn't actually happen. Fix this bug. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: qemu-stable@nongnu.org
2014-05-13hw/net/stellaris_enet: Restructure tx_fifo code to avoid buffer overrunPeter Maydell1-4/+6
The current tx_fifo code has a corner case where the guest can overrun the fifo buffer: if automatic CRCs are disabled we allow the guest to write the CRC word even if there isn't actually space for it in the FIFO. The datasheet is unclear about exactly how the hardware deals with this situation; the most plausible answer seems to be that the CRC word is just lost. Implement this fix by separating the "can we stuff another word in the FIFO" logic from the "should we transmit the packet now" check. This also moves us closer to the real hardware, which has a number of ways it can be configured to trigger sending the packet, some of which we don't implement. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: qemu-stable@nongnu.org