Add the missing features(ss, tsc-adjust, cldemote, movdiri, movdir64b) in
the SapphireRapids-v3 CPU model.
Signed-off-by: Lei Wang <lei4.wang@intel.com>
---
target/i386/cpu.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index fd6af0d763..77e7945152 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -3970,6 +3970,17 @@ static const X86CPUDefinition builtin_x86_defs[] = {
{ /* end of list */ }
}
},
+ {
+ .version = 3,
+ .props = (PropValue[]) {
+ { "ss", "on" },
+ { "tsc-adjust", "on" },
+ { "cldemote", "on" },
+ { "movdiri", "on" },
+ { "movdir64b", "on" },
+ { /* end of list */ }
+ }
+ },
{ /* end of list */ }
}
},
--
2.39.3
Queued, thanks. Paolo
Hi Lei, On Wed, Apr 24, 2024 at 03:29:12AM -0400, Lei Wang wrote: > Date: Wed, 24 Apr 2024 03:29:12 -0400 > From: Lei Wang <lei4.wang@intel.com> > Subject: [PATCH] target/i386: Introduce SapphireRapids-v3 to add missing > features > X-Mailer: git-send-email 2.39.3 > > Add the missing features(ss, tsc-adjust, cldemote, movdiri, movdir64b) in > the SapphireRapids-v3 CPU model. Considering that these are missing features, not hardware updates/fixes/Linux support changes, then as opposed to adding v3, it would be more appropriate to add these flags directly to the v1 SPR model with Fixes tag (Fixes: commit 7eb061b06e97 ("i386: Add new CPU model SapphireRapids")). Regards, Zhao
On Wed, Apr 24, 2024 at 04:33:11PM +0800, Zhao Liu wrote: > Hi Lei, > > On Wed, Apr 24, 2024 at 03:29:12AM -0400, Lei Wang wrote: > > Date: Wed, 24 Apr 2024 03:29:12 -0400 > > From: Lei Wang <lei4.wang@intel.com> > > Subject: [PATCH] target/i386: Introduce SapphireRapids-v3 to add missing > > features > > X-Mailer: git-send-email 2.39.3 > > > > Add the missing features(ss, tsc-adjust, cldemote, movdiri, movdir64b) in > > the SapphireRapids-v3 CPU model. > > Considering that these are missing features, not hardware updates/fixes/Linux > support changes, then as opposed to adding v3, it would be more appropriate > to add these flags directly to the v1 SPR model with Fixes tag (Fixes: > commit 7eb061b06e97 ("i386: Add new CPU model SapphireRapids")). That would break compatibility with v1 CPU models from existing releases of QEMU. Once released, a CPU version is read-only to preserve compatibility, which is why we have the CPU versioning concept. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
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