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path: root/hw/ppc/spapr_rtc.c
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2016-03-22util: move declarations out of qemu-common.hVeronia Bahaa1-0/+1
Move declarations out of qemu-common.h for functions declared in utils/ files: e.g. include/qemu/path.h for utils/path.c. Move inline functions out of qemu-common.h and into new files (e.g. include/qemu/bcd.h) Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-01-29ppc: Clean up includesPeter Maydell1-0/+1
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-6-git-send-email-peter.maydell@linaro.org
2016-01-11hw/ppc/spapr_rtc: Remove bad class_size valueThomas Huth1-1/+0
class_size = sizeof(XICSStateClass) does not make much sense in the RTC code and likely was just a copy-n-paste error. Let's simply remove it. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-07-20timer: rename NSEC_PER_SEC due to Mac OS X header clashStefan Hajnoczi1-4/+4
Commit e0cf11f31c24cfb17f44ed46c254d84c78e7f6e9 ("timer: Use a single definition of NSEC_PER_SEC for the whole codebase") renamed NANOSECONDS_PER_SECOND to NSEC_PER_SEC. On Mac OS X there is a <dispatch/time.h> system header which also defines NSEC_PER_SEC. This causes compiler warnings. Let's use the old name instead. It's longer but it doesn't clash. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 1436364609-7929-1-git-send-email-stefanha@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-07-07spapr: Merge sPAPREnvironment into sPAPRMachineStateDavid Gibson1-2/+2
The code for -machine pseries maintains a global sPAPREnvironment structure which keeps track of general state information about the guest platform. This predates the existence of the MachineState structure, but performs basically the same function. Now that we have the generic MachineState, fold sPAPREnvironment into sPAPRMachineState, the pseries specific subclass of MachineState. This is mostly a matter of search and replace, although a few places which relied on the global spapr variable are changed to find the structure via qdev_get_machine(). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-07-02timer: Use a single definition of NSEC_PER_SEC for the whole codebaseAlberto Garcia1-2/+1
Signed-off-by: Alberto Garcia <berto@igalia.com> Message-id: c6e55468856ba0b8f95913c4da111cc0ef266541.1434113783.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-03-09pseries: Export RTC time via QOMDavid Gibson1-0/+7
On x86, the guest's RTC can be read with QMP, either from the RTC device's "date" property or via the "rtc-time" property on the machine (which is an alias to the former). This is set up in the mc146818rtc driver, and doesn't work on other targets. This patch adds a similar "date" property to the pseries machine's RTAS RTC and adds a compatible alias to the machine. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09pseries: Move rtc_offset into RTC device's state structureDavid Gibson1-4/+37
The initial creation of the PAPR RTC qdev class left a wart - the rtc's offset was left in the sPAPREnvironment structure, accessed via a global. This patch moves it into the RTC device's own state structure, were it belongs. This requires a small change to the migration stream format. In order to handle incoming streams from older versions, we also need to retain the rtc_offset field in the sPAPREnvironment structure, so that it can be loaded into via the vmsd, then pushed into the RTC device. Since we're changing the migration format, this also takes the opportunity to: * Change the rtc offset from a value in seconds to a value in nanoseconds, allowing nanosecond offsets between host and guest rtc time, if desired. * Remove both the already unused "next_irq" field and now unused "rtc_offset" field from the new version of the spapr migration stream Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09pseries: Make the PAPR RTC a qdev deviceDavid Gibson1-3/+46
At present the PAPR RTC isn't a "device" as such - it's accessed only via firmware/hypervisor calls, and is handled in the sPAPR core code. This becomes inconvenient as we extend it in various ways. This patch makes the PAPR RTC a separate device in the qemu device model. For now, the only piece of device state - the rtc_offset - is still kept in the global sPAPREnvironment structure. That's clearly wrong, but leaving it to be fixed in a following patch makes for a clearer separation between the internal re-organization of the device, and the behavioural changes (because the migration stream format needs to change slightly when the offset is moved into the device's own state). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09pseries: Make RTAS time of day functions respect -rtc optionsDavid Gibson1-4/+36
In the 'pseries' machine the real time clock is provided by a paravirtualized firmware interface rather than a device per se; the RTAS get-time-of-day and set-time-of-day calls. Out current implementations of those work directly off host time (with an offset), not respecting options such as clock=vm which can be specified in the -rtc command line option. This patch reworks the RTAS RTC code to respect those options, primarily by basing them on the qemu_clock_get_ns(rtc_clock) function instead of directly on qemu_get_timedate() (which essentially handles host time, not virtual rtc time). As a bonus, this means our get-time-of-day function now also returns nanoseconds. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09pseries: Add spapr_rtc_read() helper functionDavid Gibson1-2/+11
The virtual RTC time is used in two places in the pseries machine. First is in the RTAS get-time-of-day function which returns the RTC time to the guest. Second is in the spapr events code which is used to timestamp event messages from the hypervisor to the guest. Currently both call qemu_get_timedate() directly, but we want to change that so we can properly handle the various -rtc options. In preparation, create a helper function to return the virtual RTC time. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09pseries: Add more parameter validation in RTAS time of day functionsDavid Gibson1-1/+6
Currently, the RTAS time of day functions only partially validate the number of parameters they receive and return. Because of how the parameters are used, this is unlikely to lead to a crash, but it's messy. This patch adds the missing checks. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09pseries: Move sPAPR RTC code into its own fileDavid Gibson1-0/+83
At the moment the RTAS (firmware/hypervisor) time of day functions are implemented in spapr_rtas.c along with a bunch of other things. Since we're going to be expanding these a bit, move the RTAS RTC related code out into new file spapr_rtc.c. Also add its own initialization function, spapr_rtc_init() called from the main machine init routine. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>