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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-16 15:53:00 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-16 15:53:00 +0200 |
commit | cb3f09f9afe5286c0aed7a1c5cc71495de166efb (patch) | |
tree | a111fdac288c8c45280224f108a956f88c2b70a6 /arch/x86/kernel/cc_platform.c | |
parent | 4d66020dcef83314092f2c8c89152a8d122627e2 (diff) | |
parent | 4eea5332d67d8ae6ba5717ec0f4e671fdbd222e7 (diff) | |
download | linux-cb3f09f9afe5286c0aed7a1c5cc71495de166efb.tar.gz linux-cb3f09f9afe5286c0aed7a1c5cc71495de166efb.tar.bz2 linux-cb3f09f9afe5286c0aed7a1c5cc71495de166efb.zip |
Merge tag 'hyperv-next-signed-20220114' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv updates from Wei Liu:
- More patches for Hyper-V isolation VM support (Tianyu Lan)
- Bug fixes and clean-up patches from various people
* tag 'hyperv-next-signed-20220114' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
scsi: storvsc: Fix storvsc_queuecommand() memory leak
x86/hyperv: Properly deal with empty cpumasks in hyperv_flush_tlb_multi()
Drivers: hv: vmbus: Initialize request offers message for Isolation VM
scsi: storvsc: Fix unsigned comparison to zero
swiotlb: Add CONFIG_HAS_IOMEM check around swiotlb_mem_remap()
x86/hyperv: Fix definition of hv_ghcb_pg variable
Drivers: hv: Fix definition of hypercall input & output arg variables
net: netvsc: Add Isolation VM support for netvsc driver
scsi: storvsc: Add Isolation VM support for storvsc driver
hyper-v: Enable swiotlb bounce buffer for Isolation VM
x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has()
swiotlb: Add swiotlb bounce buffer remap function for HV IVM
Diffstat (limited to 'arch/x86/kernel/cc_platform.c')
-rw-r--r-- | arch/x86/kernel/cc_platform.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kernel/cc_platform.c b/arch/x86/kernel/cc_platform.c index 8a25b1c0d480..6a6ffcd978f6 100644 --- a/arch/x86/kernel/cc_platform.c +++ b/arch/x86/kernel/cc_platform.c @@ -11,6 +11,7 @@ #include <linux/cc_platform.h> #include <linux/mem_encrypt.h> +#include <asm/mshyperv.h> #include <asm/processor.h> static bool __maybe_unused intel_cc_platform_has(enum cc_attr attr) @@ -66,12 +67,19 @@ static bool amd_cc_platform_has(enum cc_attr attr) #endif } +static bool hyperv_cc_platform_has(enum cc_attr attr) +{ + return attr == CC_ATTR_GUEST_MEM_ENCRYPT; +} bool cc_platform_has(enum cc_attr attr) { if (sme_me_mask) return amd_cc_platform_has(attr); + if (hv_is_isolation_supported()) + return hyperv_cc_platform_has(attr); + return false; } EXPORT_SYMBOL_GPL(cc_platform_has); |