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cfeea0c021
xemu/target/i386
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Konrad Rzeszutek Wilk cfeea0c021 i386: Define the Virt SSBD MSR and handling of it (CVE-2018-3639) 
"Some AMD processors only support a non-architectural means of enabling
speculative store bypass disable (SSBD).  To allow a simplified view of
this to a guest, an architectural definition has been created through a new
CPUID bit, 0x80000008_EBX[25], and a new MSR, 0xc001011f.  With this, a
hypervisor can virtualize the existence of this definition and provide an
architectural method for using SSBD to a guest.

Add the new CPUID feature, the new MSR and update the existing SSBD
support to use this MSR when present." (from x86/speculation: Add virtualized
speculative store bypass disable support in Linux).

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20180521215424.13520-4-berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-05-21 18:59:08 -03:00
..
hvf error: Strip trailing '\n' from error string arguments (again again) 2018-03-27 10:17:32 -05:00
arch_dump.c exec,dump,i386,ppc,s390x: don't include exec/cpu-all.h explicitly 2017-09-19 18:21:33 +02:00
arch_memory_mapping.c exec,dump,i386,ppc,s390x: don't include exec/cpu-all.h explicitly 2017-09-19 18:21:33 +02:00
bpt_helper.c target-i386: Fix eflags.TF/#DB handling of syscall/sysret insns 2016-12-22 16:01:04 +01:00
cc_helper_template.h Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
cc_helper.c target-i386: Use ctpop helper 2017-01-10 08:49:59 -08:00
cpu-qom.h i386: refactor KVM cpuid code so that it applies to hvf as well 2017-12-22 15:01:48 +01:00
cpu.c i386: define the 'ssbd' CPUID feature bit (CVE-2018-3639) 2018-05-21 18:59:01 -03:00
cpu.h i386: Define the Virt SSBD MSR and handling of it (CVE-2018-3639) 2018-05-21 18:59:08 -03:00
excp_helper.c accel/tcg: add size paremeter in tlb_fill() 2018-01-25 16:02:24 +01:00
fpu_helper.c target/*/cpu.h: remove softfloat.h 2018-02-21 10:20:24 +00:00
gdbstub.c x86: Fix x86_64 'g' packet response to gdb from 32-bit mode. 2016-12-22 16:00:25 +01:00
hax-all.c hax: Support guest RAM sizes of 4GB or more 2018-02-13 11:44:13 +01:00
hax-darwin.c Remove unnecessary variables for function return value 2018-05-20 08:48:13 +03:00
hax-darwin.h hax: Support guest RAM sizes of 4GB or more 2018-02-13 11:44:13 +01:00
hax-i386.h hax: Support guest RAM sizes of 4GB or more 2018-02-13 11:44:13 +01:00
hax-interface.h hax: Support guest RAM sizes of 4GB or more 2018-02-13 11:44:13 +01:00
hax-mem.c hax: Support guest RAM sizes of 4GB or more 2018-02-13 11:44:13 +01:00
hax-windows.c hax: Support guest RAM sizes of 4GB or more 2018-02-13 11:44:13 +01:00
hax-windows.h hax: Support guest RAM sizes of 4GB or more 2018-02-13 11:44:13 +01:00
helper.c icount: fix cpu_restore_state_from_tb for non-tb-exit cases 2018-04-11 09:05:22 +10:00
helper.h target-i386: correctly propagate retaddr into SVM helpers 2017-02-16 18:37:01 +01:00
hyperv-proto.h i386/kvm: add support for Hyper-V reenlightenment MSRs 2018-05-11 14:33:39 +02:00
hyperv.c hyperv: add header with protocol definitions 2017-09-19 16:20:49 +02:00
hyperv.h Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
int_helper.c target-i386: Use clz and ctz opcodes 2017-01-10 08:06:11 -08:00
kvm_i386.h Move CONFIG_KVM related definitions to kvm_i386.h 2017-07-04 14:30:03 +02:00
kvm-stub.c Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
kvm.c i386: Define the Virt SSBD MSR and handling of it (CVE-2018-3639) 2018-05-21 18:59:08 -03:00
machine.c i386: Define the Virt SSBD MSR and handling of it (CVE-2018-3639) 2018-05-21 18:59:08 -03:00
Makefile.objs sev/i386: add command to initialize the memory encryption context 2018-03-13 17:35:16 +01:00
mem_helper.c accel/tcg: add size paremeter in tlb_fill() 2018-01-25 16:02:24 +01:00
misc_helper.c target/i386/misc_helper: wrap BQL around another IRQ generator 2017-04-10 10:14:50 +01:00
monitor.c hmp: free sev info 2018-03-20 12:32:06 +00:00
mpx_helper.c target/i386: move cpu_sync_bndcs_hflags() function 2017-07-05 09:12:44 +02:00
ops_sse_header.h target-i386: Use ctpop helper 2017-01-10 08:49:59 -08:00
ops_sse.h target/i386: fix phminposuw in-place operation 2017-09-19 14:09:11 +02:00
seg_helper.c target/i386: simplify handling of conforming code segments on interrupt 2017-07-04 14:30:03 +02:00
sev_i386.h sev/i386: add sev_get_capabilities() 2018-03-13 17:36:06 +01:00
sev-stub.c sev/i386: add sev_get_capabilities() 2018-03-13 17:36:06 +01:00
sev.c target/i386: sev: fix memory leaks 2018-05-09 00:13:39 +02:00
shift_helper_template.h Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
smm_helper.c target/i386: use multiple CPU AddressSpaces 2017-06-07 18:22:02 +02:00
svm_helper.c icount: fix cpu_restore_state_from_tb for non-tb-exit cases 2018-04-11 09:05:22 +10:00
svm.h Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
TODO Move target-* CPU file into a target/ folder 2016-12-20 21:52:12 +01:00
trace-events sev/i386: finalize the SEV guest launch flow 2018-03-13 17:36:05 +01:00
translate.c tcg: fix s/compliment/complement/ typos 2018-05-20 08:25:23 +03:00
whpx-all.c target/i386: WHPX: set CPUID_EXT_HYPERVISOR bit 2018-04-09 16:36:38 +02:00
xsave_helper.c Include qapi/error.h exactly where needed 2018-02-09 13:50:17 +01:00