From: Pu Wen <puwen@hygon.cn>
To: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
x86@kernel.org, thomas.lendacky@amd.com, bp@alien8.de,
pbonzini@redhat.com, rkrcmar@redhat.com
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
kvm@vger.kernel.org, Pu Wen <puwen@hygon.cn>
Subject: [PATCH v3 12/17] x86/kvm: enable Hygon support to KVM infrastructure
Date: Sat, 11 Aug 2018 21:29:08 +0800 [thread overview]
Message-ID: <eacb5892319c76c05efaa9de1011a76c456c9d96.1533989493.git.puwen@hygon.cn> (raw)
In-Reply-To: <cover.1533989492.git.puwen@hygon.cn>
Hygon Dhyana CPU has the SVM feature as AMD family 17h does.
Add Hygon support in the KVM infrastructure.
Signed-off-by: Pu Wen <puwen@hygon.cn>
---
arch/x86/include/asm/kvm_emulate.h | 4 ++++
arch/x86/include/asm/virtext.h | 5 +++--
arch/x86/kvm/emulate.c | 11 ++++++++++-
3 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 0f82cd9..93c4bf5 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -364,6 +364,10 @@ struct x86_emulate_ctxt {
#define X86EMUL_CPUID_VENDOR_AMDisbetterI_ecx 0x21726574
#define X86EMUL_CPUID_VENDOR_AMDisbetterI_edx 0x74656273
+#define X86EMUL_CPUID_VENDOR_HygonGenuine_ebx 0x6f677948
+#define X86EMUL_CPUID_VENDOR_HygonGenuine_ecx 0x656e6975
+#define X86EMUL_CPUID_VENDOR_HygonGenuine_edx 0x6e65476e
+
#define X86EMUL_CPUID_VENDOR_GenuineIntel_ebx 0x756e6547
#define X86EMUL_CPUID_VENDOR_GenuineIntel_ecx 0x6c65746e
#define X86EMUL_CPUID_VENDOR_GenuineIntel_edx 0x49656e69
diff --git a/arch/x86/include/asm/virtext.h b/arch/x86/include/asm/virtext.h
index 0116b2e..e05e0d3 100644
--- a/arch/x86/include/asm/virtext.h
+++ b/arch/x86/include/asm/virtext.h
@@ -83,9 +83,10 @@ static inline void cpu_emergency_vmxoff(void)
*/
static inline int cpu_has_svm(const char **msg)
{
- if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD &&
+ boot_cpu_data.x86_vendor != X86_VENDOR_HYGON) {
if (msg)
- *msg = "not amd";
+ *msg = "not amd or hygon";
return 0;
}
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 4c4f426..1ab7758 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2711,7 +2711,16 @@ static bool em_syscall_is_enabled(struct x86_emulate_ctxt *ctxt)
edx == X86EMUL_CPUID_VENDOR_AMDisbetterI_edx)
return true;
- /* default: (not Intel, not AMD), apply Intel's stricter rules... */
+ /* Hygon ("HygonGenuine") */
+ if (ebx == X86EMUL_CPUID_VENDOR_HygonGenuine_ebx &&
+ ecx == X86EMUL_CPUID_VENDOR_HygonGenuine_ecx &&
+ edx == X86EMUL_CPUID_VENDOR_HygonGenuine_edx)
+ return true;
+
+ /*
+ * default: (not Intel, not AMD, not Hygon), apply Intel's
+ * stricter rules...
+ */
return false;
}
--
2.7.4
next prev parent reply other threads:[~2018-08-11 13:29 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-11 13:25 [PATCH v3 00/17] Add support for Hygon Dhyana Family 18h processor Pu Wen
2018-08-11 13:25 ` [PATCH v3 01/17] x86/cpu: create Dhyana init file and register new cpu_dev to system Pu Wen
2018-08-11 13:26 ` [PATCH v3 02/17] x86/cache: get cache size/leaves and setup cache cpumap for Dhyana Pu Wen
2018-08-11 13:26 ` [PATCH v3 03/17] x86/mtrr: get MTRR number and support TOP_MEM2 Pu Wen
2018-08-11 13:26 ` [PATCH v3 04/17] x86/smpboot: smp init nodelay and no flush caches before sleep Pu Wen
2018-08-11 13:27 ` [PATCH v3 05/17] x86/perfctr: return perf counter and event selection bit offset Pu Wen
2018-08-11 13:27 ` [PATCH v3 06/17] x86/nops: init ideal_nops for Hygon Pu Wen
2018-08-11 13:27 ` [PATCH v3 07/17] x86/pci: add Hygon PCI vendor and northbridge support Pu Wen
2018-08-13 22:14 ` Bjorn Helgaas
2018-08-14 4:56 ` Pu Wen
2018-08-11 13:27 ` [PATCH v3 08/17] x86/apic: add modern APIC support for Hygon Pu Wen
2018-08-11 13:28 ` [PATCH v3 09/17] x86/bugs: add lfence mitigation to spectre v2 and no meltdown " Pu Wen
2018-08-11 13:28 ` [PATCH v3 10/17] x86/events: enable Hygon support to PMU infrastructure Pu Wen
2018-08-11 13:28 ` [PATCH v3 11/17] x86/mce: enable Hygon support to MCE infrastructure Pu Wen
2018-08-11 13:29 ` Pu Wen [this message]
2018-08-11 13:29 ` [PATCH v3 13/17] x86/xen: enable Hygon support to Xen Pu Wen
2018-08-11 14:34 ` Boris Ostrovsky
2018-08-12 8:55 ` Juergen Gross
2018-08-12 13:26 ` Boris Ostrovsky
2018-08-16 13:29 ` Pu Wen
2018-08-17 4:37 ` Boris Ostrovsky
2018-08-16 13:22 ` Pu Wen
2018-08-11 13:29 ` [PATCH v3 14/17] driver/acpi: enable Hygon support to ACPI driver Pu Wen
2018-08-12 10:12 ` Rafael J. Wysocki
2018-08-11 13:29 ` [PATCH v3 15/17] driver/cpufreq: enable Hygon support to cpufreq driver Pu Wen
2018-08-12 9:55 ` Rafael J. Wysocki
2018-08-13 16:22 ` Pu Wen
2018-08-14 10:11 ` Rafael J. Wysocki
2018-08-14 10:12 ` Rafael J. Wysocki
2018-08-11 13:30 ` [PATCH v3 16/17] driver/edac: enable Hygon support to AMD64 EDAC driver Pu Wen
2018-08-11 19:56 ` Michael Jin
2018-08-11 20:10 ` Michael Jin
2018-08-13 16:19 ` Pu Wen
2018-08-13 16:17 ` Pu Wen
2018-08-13 16:47 ` Michael Jin
2018-08-13 16:18 ` Pu Wen
2018-08-11 13:30 ` [PATCH v3 17/17] tools/cpupower: enable Hygon support to cpupower tool Pu Wen
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