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From 4c9201a83e3ff48d2a55e45a34eb27966a1e4ab0 Mon Sep 17 00:00:00 2001
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From: "plai@redhat.com" <plai@redhat.com>
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Date: Fri, 5 Jun 2020 18:37:33 -0400
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Subject: [PATCH 3/3] target/i386: Add ARCH_CAPABILITIES related bits into
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Icelake-Server CPU model
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: plai@redhat.com
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Message-id: <20200605183733.8269-1-plai@redhat.com>
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Patchwork-id: 97380
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O-Subject: [RHEL8.2.1 AV qemu-kvm PATCH] target/i386: Add ARCH_CAPABILITIES related bits into Icelake-Server CPU model
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Bugzilla: 1840342
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Bandan Das <bsd@redhat.com>
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RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
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RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
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From: Xiaoyao Li <xiaoyao.li@intel.com>
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BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1840342
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Brew: http://brewweb.devel.redhat.com/brew/taskinfo?taskID=28983822
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Branch: rhel-av-8.2.1
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Tested on HOST: intel-whitley-09.khw1.lab.eng.bos.redhat.com
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1. qemu-kvm -cpu host …
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VM guest does have arch_capabilities in cpuinfo/flags.
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[Expected success]
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2. qemu-kvm -cpu Icelake-Server …
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VM guest does NOT have arch_capabilities in cpuinfo/flags.
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[Expected failure]
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3. qemu-kvm -cpu Icelake-Server-v3 …
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VM guest does have arch_capabilities in cpuinfo/flags.
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[Expected success]
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---
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Current Icelake-Server CPU model lacks all the features enumerated by
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MSR_IA32_ARCH_CAPABILITIES.
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Add them, so that guest of "Icelake-Server" can see all of them.
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Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
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Message-Id: <20200316095605.12318-1-xiaoyao.li@intel.com>
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Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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(cherry picked from commit d965dc35592d24c0c1519f1c566223c6277cb80e)
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Signed-off-by: Paul Lai <plai@redhat.com>
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Signed-off-by: Eduardo Lima (Etrunko) <etrunko@redhat.com>
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---
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target/i386/cpu.c | 13 +++++++++++++
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1 file changed, 13 insertions(+)
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diff --git a/target/i386/cpu.c b/target/i386/cpu.c
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index b763adcdc5..7d7b016bb7 100644
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--- a/target/i386/cpu.c
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+++ b/target/i386/cpu.c
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@@ -3496,6 +3496,19 @@ static X86CPUDefinition builtin_x86_defs[] = {
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{ /* end of list */ }
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},
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},
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+ {
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+ .version = 3,
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+ .props = (PropValue[]) {
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+ { "arch-capabilities", "on" },
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+ { "rdctl-no", "on" },
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+ { "ibrs-all", "on" },
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+ { "skip-l1dfl-vmentry", "on" },
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+ { "mds-no", "on" },
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+ { "pschange-mc-no", "on" },
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+ { "taa-no", "on" },
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+ { /* end of list */ }
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+ },
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+ },
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{ /* end of list */ }
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}
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},
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--
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2.27.0
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