From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: lei4.wang@intel.com, robert.hu@linux.intel.com,
xiaoyao.li@intel.com, chenyi.qiang@intel.com
Subject: [PATCH v4 1/4] target/i386: add FSRM to TCG
Date: Mon, 27 Feb 2023 11:13:28 +0100 [thread overview]
Message-ID: <20230227101332.636203-2-pbonzini@redhat.com> (raw)
In-Reply-To: <20230227101332.636203-1-pbonzini@redhat.com>
Fast short REP MOVS can be added to TCG, since a trivial translation
of string operation is a good option for short lengths.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 4d2b8d0444df..34e2cead870e 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -661,7 +661,7 @@ void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1,
#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)
-#define TCG_7_0_EDX_FEATURES 0
+#define TCG_7_0_EDX_FEATURES CPUID_7_0_EDX_FSRM
#define TCG_7_1_EAX_FEATURES 0
#define TCG_APM_FEATURES 0
#define TCG_6_EAX_FEATURES CPUID_6_EAX_ARAT
--
2.39.1
next prev parent reply other threads:[~2023-02-27 10:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-27 10:13 [PATCH v4 0/4] target/i386: Add new CPU model SapphireRapids and new fast string op leaves Paolo Bonzini
2023-02-27 10:13 ` Paolo Bonzini [this message]
2023-02-27 19:29 ` [PATCH v4 1/4] target/i386: add FSRM to TCG Richard Henderson
2023-02-27 10:13 ` [PATCH v4 2/4] target/i386: add FZRM, FSRS, FSRC Paolo Bonzini
2023-02-27 13:39 ` Xiaoyao Li
2023-02-27 19:31 ` Richard Henderson
2023-02-27 10:13 ` [PATCH v4 3/4] target/i386: KVM: allow fast string operations if host supports them Paolo Bonzini
2023-02-27 13:35 ` Xiaoyao Li
2023-02-27 19:32 ` Richard Henderson
[not found] ` <20230227101332.636203-5-pbonzini@redhat.com>
2023-02-27 13:45 ` [PATCH v4 4/4] target/i386: Add new CPU model SapphireRapids Xiaoyao Li
2023-02-28 8:46 ` [PATCH v4 0/4] target/i386: Add new CPU model SapphireRapids and new fast string op leaves Xiaoyao Li
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230227101332.636203-2-pbonzini@redhat.com \
--to=pbonzini@redhat.com \
--cc=chenyi.qiang@intel.com \
--cc=lei4.wang@intel.com \
--cc=qemu-devel@nongnu.org \
--cc=robert.hu@linux.intel.com \
--cc=xiaoyao.li@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).