bwlp/qemu.git/target-ppc/kvm_ppc.h, branch spice_video_codecs

Move target-* CPU file into a target/ folder

2016-12-20T20:52:12+00:00

We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier [m68k part] Acked-by: Bastian Koppelmann [tricore part] Acked-by: Michael Walle [lm32 part] Acked-by: Cornelia Huck [s390x part] Reviewed-by: Christian Borntraeger [s390x part] Acked-by: Eduardo Habkost [i386 part] Acked-by: Artyom Tarasenko [sparc part] Acked-by: Richard Henderson [alpha part] Acked-by: Max Filippov [xtensa part] Reviewed-by: David Gibson [ppc part] Acked-by: Edgar E. Iglesias [crisµblaze part] Acked-by: Guan Xuetao [unicore32 part] Signed-off-by: Thomas Huth

ppc: Check the availability of transactional memory

2016-10-05T00:05:28+00:00

KVM-PR currently does not support transactional memory, and the implementation in TCG is just a fake. We should not announce TM support in the ibm,pa-features property when running on such a system, so disable it by default and only enable it if the KVM implementation supports it (i.e. recent versions of KVM-HV). These changes are based on some earlier work from Anton Blanchard (thanks!). Signed-off-by: Thomas Huth Reviewed-by: Cédric Le Goater Signed-off-by: David Gibson

Enable H_CLEAR_MOD and H_CLEAR_REF hypercalls on KVM/PPC64.

2016-09-23T02:39:07+00:00

These are mandatory per PAPR and available on Linux 4.3 and newer kernels. The calls in question are required to run FreeBSD guests with reasonable performance, so enable them if possible. Signed-off-by: Nathan Whitehorn [dwg: Added a stub to fix compile without KVM (e.g. on x86 host)] Signed-off-by: David Gibson

Clean up ill-advised or unusual header guards

2016-07-12T14:20:46+00:00

Cleaned up with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster Reviewed-by: Richard Henderson

ppc: Provide function to get CPU class of the host CPU

2016-06-14T00:41:38+00:00

When running with KVM, we might be interested in some details of the host CPU class, too, so provide a function to get the corresponding CPU class. Signed-off-by: Thomas Huth Reviewed-by: Michael Roth Signed-off-by: David Gibson

spapr_iommu: Finish renaming vfio_accel to need_vfio

2016-05-26T23:40:23+00:00

6a81dd17 "spapr_iommu: Rename vfio_accel parameter" renamed vfio_accel flag everywhere but one spot was missed. Signed-off-by: Alexey Kardashevskiy Reviewed-by: David Gibson Signed-off-by: David Gibson

target-ppc: Add helpers for updating a CPU's SDR1 and external HPT

2016-03-15T22:55:06+00:00

When a Power cpu with 64-bit hash MMU has it's hash page table (HPT) pointer updated by a write to the SDR1 register we need to update some derived variables. Likewise, when the cpu is configured for an external HPT (one not in the guest memory space) some derived variables need to be updated. Currently the logic for this is (partially) duplicated in ppc_store_sdr1() and in spapr_cpu_reset(). In future we're going to need it in some other places, so make some common helpers for this update. In addition the new ppc_hash64_set_external_hpt() helper also updates SDR1 in KVM - it's not updated by the normal runtime KVM <-> qemu CPU synchronization. In a sense this belongs logically in the ppc_hash64_set_sdr1() helper, but that is called from kvm_arch_get_registers() so can't itself call cpu_synchronize_state() without infinite recursion. In practice this doesn't matter because the only other caller is TCG specific. Currently there aren't situations where updating SDR1 at runtime in KVM matters, but there are going to be in future. Signed-off-by: David Gibson Reviewed-by: Greg Kurz Reviewed-by: Thomas Huth

hw/ppc/spapr: Implement the h_page_init hypercall

2016-02-25T02:58:44+00:00

This hypercall either initializes a page with zeros, or copies another page. According to LoPAPR, the i-cache of the page should also be flushed if using H_ICACHE_INVALIDATE or H_ICACHE_SYNCHRONIZE, and the d-cache should be synchronized to the RAM if the H_ICACHE_SYNCHRONIZE flag is used. For this, two new functions are introduced, kvmppc_dcbst_range() and kvmppc_icbi()_range, which use the corresponding assembler instructions to flush the caches if running with KVM on Power. If the code runs with TCG instead, the code only uses tb_flush(), assuming that this will be enough for synchronization. Signed-off-by: Thomas Huth Signed-off-by: David Gibson

target-ppc: Remove unused kvmppc_update_sdr1() stub

2016-02-16T22:59:29+00:00

This KVM stub implementation isn't used anywhere. Signed-off-by: David Gibson Reviewed-by: Alexey Kardashevskiy

target-ppc: Remove unused kvmppc_read_segment_page_sizes() stub

2016-01-30T12:37:38+00:00

This stub function is in the !KVM ifdef in target-ppc/kvm_ppc.h. However no such function exists on the KVM side, or is ever used. I think this originally referenced a function which read host page size information from /proc, for we we now use the KVM GET_SMMU_INFO extension instead. In any case, it has no function now, so remove it. Signed-off-by: David Gibson Reviewed-by: Thomas Huth Reviewed-by: Laurent Vivier Reviewed-by: Alexander Graf