From: Tianyu Lan <ltykernel@gmail.com> To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, luto@kernel.org, peterz@infradead.org, jgross@suse.com, sstabellini@kernel.org, boris.ostrovsky@oracle.com, kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, joro@8bytes.org, will@kernel.org, davem@davemloft.net, kuba@kernel.org, jejb@linux.ibm.com, martin.petersen@oracle.com, hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com, Tianyu.Lan@microsoft.com, thomas.lendacky@amd.com, xen-devel@lists.xenproject.org, michael.h.kelley@microsoft.com Cc: iommu@lists.linux-foundation.org, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, netdev@vger.kernel.org, vkuznets@redhat.com, brijesh.singh@amd.com, konrad.wilk@oracle.com, parri.andrea@gmail.com, dave.hansen@intel.com Subject: [PATCH V2 3/6] x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has() Date: Tue, 23 Nov 2021 09:30:34 -0500 [thread overview] Message-ID: <20211123143039.331929-4-ltykernel@gmail.com> (raw) In-Reply-To: <20211123143039.331929-1-ltykernel@gmail.com> From: Tianyu Lan <Tianyu.Lan@microsoft.com> Hyper-V provides Isolation VM which has memory encrypt support. Add hyperv_cc_platform_has() and return true for check of GUEST_MEM_ENCRYPT attribute. Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com> --- arch/x86/kernel/cc_platform.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/x86/kernel/cc_platform.c b/arch/x86/kernel/cc_platform.c index 03bb2f343ddb..f3bb0431f5c5 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) @@ -58,9 +59,23 @@ static bool amd_cc_platform_has(enum cc_attr attr) #endif } +static bool hyperv_cc_platform_has(enum cc_attr attr) +{ +#ifdef CONFIG_HYPERV + if (attr == CC_ATTR_GUEST_MEM_ENCRYPT) + return true; + else + return false; +#else + return false; +#endif +} bool cc_platform_has(enum cc_attr attr) { + if (hv_is_isolation_supported()) + return hyperv_cc_platform_has(attr); + if (sme_me_mask) return amd_cc_platform_has(attr); -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Tianyu Lan <ltykernel@gmail.com> To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, luto@kernel.org, peterz@infradead.org, jgross@suse.com, sstabellini@kernel.org, boris.ostrovsky@oracle.com, kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, joro@8bytes.org, will@kernel.org, davem@davemloft.net, kuba@kernel.org, jejb@linux.ibm.com, martin.petersen@oracle.com, hch@lst.de, m.szyprowski@samsung.com, robin.murphy@arm.com, Tianyu.Lan@microsoft.com, thomas.lendacky@amd.com, xen-devel@lists.xenproject.org, michael.h.kelley@microsoft.com Cc: parri.andrea@gmail.com, linux-hyperv@vger.kernel.org, brijesh.singh@amd.com, linux-scsi@vger.kernel.org, konrad.wilk@oracle.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, dave.hansen@intel.com, iommu@lists.linux-foundation.org, vkuznets@redhat.com Subject: [PATCH V2 3/6] x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has() Date: Tue, 23 Nov 2021 09:30:34 -0500 [thread overview] Message-ID: <20211123143039.331929-4-ltykernel@gmail.com> (raw) In-Reply-To: <20211123143039.331929-1-ltykernel@gmail.com> From: Tianyu Lan <Tianyu.Lan@microsoft.com> Hyper-V provides Isolation VM which has memory encrypt support. Add hyperv_cc_platform_has() and return true for check of GUEST_MEM_ENCRYPT attribute. Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com> --- arch/x86/kernel/cc_platform.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/x86/kernel/cc_platform.c b/arch/x86/kernel/cc_platform.c index 03bb2f343ddb..f3bb0431f5c5 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) @@ -58,9 +59,23 @@ static bool amd_cc_platform_has(enum cc_attr attr) #endif } +static bool hyperv_cc_platform_has(enum cc_attr attr) +{ +#ifdef CONFIG_HYPERV + if (attr == CC_ATTR_GUEST_MEM_ENCRYPT) + return true; + else + return false; +#else + return false; +#endif +} bool cc_platform_has(enum cc_attr attr) { + if (hv_is_isolation_supported()) + return hyperv_cc_platform_has(attr); + if (sme_me_mask) return amd_cc_platform_has(attr); -- 2.25.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2021-11-23 14:37 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-23 14:30 [PATCH V2 0/6] x86/Hyper-V: Add Hyper-V Isolation VM support(Second part) Tianyu Lan 2021-11-23 14:30 ` Tianyu Lan 2021-11-23 14:30 ` [PATCH V2 1/6] Swiotlb: Add Swiotlb bounce buffer remap function for HV IVM Tianyu Lan 2021-11-23 14:30 ` Tianyu Lan 2021-11-23 17:15 ` Michael Kelley (LINUX) 2021-11-23 17:15 ` Michael Kelley (LINUX) via iommu 2021-11-24 14:07 ` Tianyu Lan 2021-11-24 14:07 ` Tianyu Lan 2021-11-23 14:30 ` [PATCH V2 2/6] dma-mapping: Add vmap/vunmap_noncontiguous() callback in dma ops Tianyu Lan 2021-11-23 14:30 ` Tianyu Lan 2021-11-23 14:30 ` Tianyu Lan [this message] 2021-11-23 14:30 ` [PATCH V2 3/6] x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has() Tianyu Lan 2021-11-23 14:30 ` [PATCH V2 4/6] hyperv/IOMMU: Enable swiotlb bounce buffer for Isolation VM Tianyu Lan 2021-11-23 14:30 ` Tianyu Lan 2021-11-23 17:44 ` Michael Kelley (LINUX) 2021-11-23 17:44 ` Michael Kelley (LINUX) via iommu 2021-11-23 14:30 ` [PATCH V2 5/6] net: netvsc: Add Isolation VM support for netvsc driver Tianyu Lan 2021-11-23 14:30 ` Tianyu Lan 2021-11-23 17:55 ` Michael Kelley (LINUX) 2021-11-23 17:55 ` Michael Kelley (LINUX) via iommu 2021-11-24 17:03 ` Michael Kelley (LINUX) 2021-11-24 17:03 ` Michael Kelley (LINUX) via iommu 2021-11-25 21:58 ` Haiyang Zhang via iommu 2021-11-25 21:58 ` Haiyang Zhang 2021-11-23 14:30 ` [PATCH V2 6/6] scsi: storvsc: Add Isolation VM support for storvsc driver Tianyu Lan 2021-11-23 14:30 ` Tianyu Lan
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