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bh=liB2Vx01UETRmR85jAnvUN5jWJXLjBT8ZS9U0KHp2kw=; b=UKr9XIueSL6paZF3XE9PngrJJn67QikJQJvNsNpdvUZn+D+FUMutBRBwLx467JOx59WgOJ sFq3zloy+MhAQ9hi+pfRljk5xKt/uPwBPngveT2SH3MUIkgwYENnQtkpoV3ZV1Z36x5+OY H3ldBMbmfTnflraJEKhWCZLS6S+6zgU= X-MC-Unique: CELbe1VpNaaFzGi-ieajaQ-1 From: Eduardo Habkost To: qemu-devel@nongnu.org, Peter Maydell Subject: [PULL 1/2] i386: Add missing cpu feature bits in EPYC-Rome model Date: Fri, 9 Apr 2021 16:22:45 -0400 Message-Id: <20210409202246.1857179-2-ehabkost@redhat.com> In-Reply-To: <20210409202246.1857179-1-ehabkost@redhat.com> References: <20210409202246.1857179-1-ehabkost@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=ehabkost@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" From: Babu Moger Found the following cpu feature bits missing from EPYC-Rome model. ibrs : Indirect Branch Restricted Speculation ssbd : Speculative Store Bypass Disable These new features will be added in EPYC-Rome-v2. The -cpu help output after the change. x86 EPYC-Rome (alias configured by machine type) x86 EPYC-Rome-v1 AMD EPYC-Rome Processor x86 EPYC-Rome-v2 AMD EPYC-Rome Processor Reported-by: Pankaj Gupta Signed-off-by: Babu Moger Signed-off-by: Pankaj Gupta Signed-off-by: Eduardo Habkost Reviewed-by: David Edmondson Message-Id: <161478622280.16275.6399866734509127420.stgit@bmoger-ubuntu> Signed-off-by: Eduardo Habkost --- target/i386/cpu.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 6b3e9467f17..ad99cad0e7c 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -4179,6 +4179,18 @@ static X86CPUDefinition builtin_x86_defs[] =3D { .xlevel =3D 0x8000001E, .model_id =3D "AMD EPYC-Rome Processor", .cache_info =3D &epyc_rome_cache_info, + .versions =3D (X86CPUVersionDefinition[]) { + { .version =3D 1 }, + { + .version =3D 2, + .props =3D (PropValue[]) { + { "ibrs", "on" }, + { "amd-ssbd", "on" }, + { /* end of list */ } + } + }, + { /* end of list */ } + } }, { .name =3D "EPYC-Milan", --=20 2.30.2