From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: Richard Henderson <richard.henderson@linaro.org>
Subject: [PULL 09/18] target/i386: TCG supports RDSEED
Date: Mon, 26 Jun 2023 13:14:36 +0200 [thread overview]
Message-ID: <20230626111445.163573-10-pbonzini@redhat.com> (raw)
In-Reply-To: <20230626111445.163573-1-pbonzini@redhat.com>
TCG implements RDSEED, and in fact uses qcrypto_random_bytes which is
secure enough to match hardware behavior. Expose it to guests.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/cpu.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index ff3dcd02dcb..fc4246223d4 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -657,11 +657,10 @@ void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1,
CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX | \
CPUID_7_0_EBX_PCOMMIT | CPUID_7_0_EBX_CLFLUSHOPT | \
CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE | \
- CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_AVX2)
+ CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_RDSEED)
/* missing:
CPUID_7_0_EBX_HLE
- CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
- CPUID_7_0_EBX_RDSEED */
+ CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM */
#define TCG_7_0_ECX_FEATURES (CPUID_7_0_ECX_UMIP | CPUID_7_0_ECX_PKU | \
/* CPUID_7_0_ECX_OSPKE is dynamic */ \
CPUID_7_0_ECX_LA57 | CPUID_7_0_ECX_PKS | CPUID_7_0_ECX_VAES)
--
2.41.0
next prev parent reply other threads:[~2023-06-26 11:18 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-26 11:14 [PULL 00/18] Misc, i386 patches for 2023-06-26 Paolo Bonzini
2023-06-26 11:14 ` [PULL 01/18] build: further refine build.ninja rules Paolo Bonzini
2023-06-26 11:14 ` [PULL 02/18] hw/remote/proxy: Remove dubious 'event_notifier-posix.c' include Paolo Bonzini
2023-06-26 11:14 ` [PULL 03/18] numa: Validate cluster and NUMA node boundary if required Paolo Bonzini
2023-07-20 13:10 ` Peter Maydell
2023-07-21 10:50 ` Gavin Shan
2023-06-26 11:14 ` [PULL 04/18] hw/arm: Validate cluster and NUMA node boundary Paolo Bonzini
2023-06-26 11:14 ` [PULL 05/18] hw/riscv: " Paolo Bonzini
2023-06-26 11:14 ` [PULL 06/18] kvm: reuse per-vcpu stats fd to avoid vcpu interruption Paolo Bonzini
2023-06-26 11:14 ` [PULL 07/18] target/i386: fix INVD vmexit Paolo Bonzini
2023-06-26 11:14 ` [PULL 08/18] target/i386: TCG supports 3DNow! prefetch(w) Paolo Bonzini
2023-06-26 11:14 ` Paolo Bonzini [this message]
2023-06-26 11:14 ` [PULL 10/18] target/i386: do not accept RDSEED if CPUID bit absent Paolo Bonzini
2023-06-26 11:14 ` [PULL 11/18] target/i386: TCG supports XSAVEERPTR Paolo Bonzini
2023-06-26 11:14 ` [PULL 12/18] target/i386: TCG supports WBNOINVD Paolo Bonzini
2023-06-26 11:14 ` [PULL 13/18] target/i386: Intel only supports SYSCALL/SYSRET in long mode Paolo Bonzini
2023-06-26 11:14 ` [PULL 14/18] target/i386: AMD only supports SYSENTER/SYSEXIT in 32-bit mode Paolo Bonzini
2023-06-26 11:14 ` [PULL 15/18] target/i386: sysret and sysexit are privileged Paolo Bonzini
2023-06-26 11:14 ` [PULL 16/18] target/i386: implement RDPID in TCG Paolo Bonzini
2023-06-26 11:14 ` [PULL 17/18] target/i386: implement SYSCALL/SYSRET in 32-bit emulators Paolo Bonzini
2023-06-26 11:14 ` [PULL 18/18] git-submodule.sh: allow running in validate mode without previous update Paolo Bonzini
2023-06-26 14:04 ` [PULL 00/18] Misc, i386 patches for 2023-06-26 Richard Henderson
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