diff options
| -rw-r--r-- | hw/ppc/spapr_iommu.c | 71 | ||||
| -rw-r--r-- | trace-events | 5 |
2 files changed, 29 insertions, 47 deletions
diff --git a/hw/ppc/spapr_iommu.c b/hw/ppc/spapr_iommu.c index 3d4a1fcfe1..ef45f4f0cc 100644 --- a/hw/ppc/spapr_iommu.c +++ b/hw/ppc/spapr_iommu.c @@ -22,13 +22,12 @@ #include "kvm_ppc.h" #include "sysemu/dma.h" #include "exec/address-spaces.h" +#include "trace.h" #include "hw/ppc/spapr.h" #include <libfdt.h> -/* #define DEBUG_TCE */ - enum sPAPRTCEAccess { SPAPR_TCE_FAULT = 0, SPAPR_TCE_RO = 1, @@ -61,44 +60,28 @@ static IOMMUTLBEntry spapr_tce_translate_iommu(MemoryRegion *iommu, hwaddr addr) { sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu); uint64_t tce; - -#ifdef DEBUG_TCE - fprintf(stderr, "spapr_tce_translate liobn=0x%" PRIx32 " addr=0x" - DMA_ADDR_FMT "\n", tcet->liobn, addr); -#endif + IOMMUTLBEntry ret = { + .target_as = &address_space_memory, + .iova = 0, + .translated_addr = 0, + .addr_mask = ~(hwaddr)0, + .perm = IOMMU_NONE, + }; if (tcet->bypass) { - return (IOMMUTLBEntry) { - .target_as = &address_space_memory, - .iova = 0, - .translated_addr = 0, - .addr_mask = ~(hwaddr)0, - .perm = IOMMU_RW, - }; - } - - /* Check if we are in bound */ - if (addr >= tcet->window_size) { -#ifdef DEBUG_TCE - fprintf(stderr, "spapr_tce_translate out of bounds\n"); -#endif - return (IOMMUTLBEntry) { .perm = IOMMU_NONE }; + ret.perm = IOMMU_RW; + } else if (addr < tcet->window_size) { + /* Check if we are in bound */ + tce = tcet->table[addr >> SPAPR_TCE_PAGE_SHIFT]; + ret.iova = addr & ~SPAPR_TCE_PAGE_MASK; + ret.translated_addr = tce & ~SPAPR_TCE_PAGE_MASK; + ret.addr_mask = SPAPR_TCE_PAGE_MASK; + ret.perm = tce; } + trace_spapr_iommu_xlate(tcet->liobn, addr, ret.iova, ret.perm, + ret.addr_mask); - tce = tcet->table[addr >> SPAPR_TCE_PAGE_SHIFT]; - -#ifdef DEBUG_TCE - fprintf(stderr, " -> *paddr=0x%llx, *len=0x%llx\n", - (tce & ~SPAPR_TCE_PAGE_MASK), SPAPR_TCE_PAGE_MASK + 1); -#endif - - return (IOMMUTLBEntry) { - .target_as = &address_space_memory, - .iova = addr & ~SPAPR_TCE_PAGE_MASK, - .translated_addr = tce & ~SPAPR_TCE_PAGE_MASK, - .addr_mask = SPAPR_TCE_PAGE_MASK, - .perm = tce, - }; + return ret; } static int spapr_tce_table_pre_load(void *opaque) @@ -150,10 +133,7 @@ static int spapr_tce_table_realize(DeviceState *dev) } tcet->nb_table = tcet->window_size >> SPAPR_TCE_PAGE_SHIFT; -#ifdef DEBUG_TCE - fprintf(stderr, "spapr_iommu: New TCE table @ %p, liobn=0x%x, " - "table @ %p, fd=%d\n", tcet, liobn, tcet->table, tcet->fd); -#endif + trace_spapr_iommu_new_table(tcet->liobn, tcet, tcet->table, tcet->fd); memory_region_init_iommu(&tcet->iommu, OBJECT(dev), &spapr_iommu_ops, "iommu-spapr", UINT64_MAX); @@ -250,20 +230,17 @@ static target_ulong h_put_tce(PowerPCCPU *cpu, sPAPREnvironment *spapr, target_ulong liobn = args[0]; target_ulong ioba = args[1]; target_ulong tce = args[2]; + target_ulong ret = H_PARAMETER; sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn); ioba &= ~(SPAPR_TCE_PAGE_SIZE - 1); if (tcet) { - return put_tce_emu(tcet, ioba, tce); + ret = put_tce_emu(tcet, ioba, tce); } -#ifdef DEBUG_TCE - fprintf(stderr, "%s on liobn=" TARGET_FMT_lx /*%s*/ - " ioba 0x" TARGET_FMT_lx " TCE 0x" TARGET_FMT_lx "\n", - __func__, liobn, /*dev->qdev.id, */ioba, tce); -#endif + trace_spapr_iommu_put(liobn, ioba, tce, ret); - return H_PARAMETER; + return ret; } int spapr_dma_dt(void *fdt, int node_off, const char *propname, diff --git a/trace-events b/trace-events index 3856b5c206..aaad3560f4 100644 --- a/trace-events +++ b/trace-events @@ -1133,6 +1133,11 @@ xics_ics_write_xive(int nr, int srcno, int server, uint8_t priority) "ics_write_ xics_ics_reject(int nr, int srcno) "reject irq %#x [src %d]" xics_ics_eoi(int nr) "ics_eoi: irq %#x" +# hw/ppc/spapr_iommu.c +spapr_iommu_put(uint64_t liobn, uint64_t ioba, uint64_t tce, uint64_t ret) "liobn=%"PRIx64" ioba=0x%"PRIx64" tce=0x%"PRIx64" ret=%"PRId64 +spapr_iommu_xlate(uint64_t liobn, uint64_t ioba, uint64_t tce, unsigned perm, unsigned pgsize) "liobn=%"PRIx64" 0x%"PRIx64" -> 0x%"PRIx64" perm=%u mask=%x" +spapr_iommu_new_table(uint64_t liobn, void *tcet, void *table, int fd) "liobn=%"PRIx64" tcet=%p table=%p fd=%d" + # util/hbitmap.c hbitmap_iter_skip_words(const void *hb, void *hbi, uint64_t pos, unsigned long cur) "hb %p hbi %p pos %"PRId64" cur 0x%lx" hbitmap_reset(void *hb, uint64_t start, uint64_t count, uint64_t sbit, uint64_t ebit) "hb %p items %"PRIu64",%"PRIu64" bits %"PRIu64"..%"PRIu64 |