From: Sergey Dyasli <sergey.dyasli@citrix.com>
To: xen-devel@lists.xen.org
Cc: Andrew Cooper <Andrew.Cooper3@citrix.com>,
Kevin Tian <kevin.tian@intel.com>,
Jan Beulich <jbeulich@suse.com>,
Jun Nakajima <jun.nakajima@intel.com>,
Sergey Dyasli <sergey.dyasli@citrix.com>
Subject: [PATCH v3 3/6] x86/msr: read VMX MSRs values into Raw policy
Date: Fri, 13 Oct 2017 13:35:09 +0100 [thread overview]
Message-ID: <20171013123512.26102-4-sergey.dyasli@citrix.com> (raw)
In-Reply-To: <20171013123512.26102-1-sergey.dyasli@citrix.com>
Add calculate_raw_vmx_policy() which fills Raw policy with H/W values
of VMX MSRs. Host policy will contain a copy of these values.
Signed-off-by: Sergey Dyasli <sergey.dyasli@citrix.com>
---
xen/arch/x86/msr.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 77 insertions(+)
diff --git a/xen/arch/x86/msr.c b/xen/arch/x86/msr.c
index 24029a2ac1..955aba0849 100644
--- a/xen/arch/x86/msr.c
+++ b/xen/arch/x86/msr.c
@@ -32,6 +32,81 @@ struct msr_domain_policy __read_mostly raw_msr_domain_policy,
struct msr_vcpu_policy __read_mostly hvm_max_msr_vcpu_policy,
__read_mostly pv_max_msr_vcpu_policy;
+static void __init calculate_raw_vmx_policy(struct msr_domain_policy *dp)
+{
+ if ( !cpu_has_vmx )
+ return;
+
+ dp->vmx_basic.available = true;
+ rdmsrl(MSR_IA32_VMX_BASIC, dp->vmx_basic.u.raw);
+
+ dp->vmx_pinbased_ctls.available = true;
+ rdmsrl(MSR_IA32_VMX_PINBASED_CTLS, dp->vmx_pinbased_ctls.u.raw);
+
+ dp->vmx_procbased_ctls.available = true;
+ rdmsrl(MSR_IA32_VMX_PROCBASED_CTLS, dp->vmx_procbased_ctls.u.raw);
+
+ dp->vmx_exit_ctls.available = true;
+ rdmsrl(MSR_IA32_VMX_EXIT_CTLS, dp->vmx_exit_ctls.u.raw);
+
+ dp->vmx_entry_ctls.available = true;
+ rdmsrl(MSR_IA32_VMX_ENTRY_CTLS, dp->vmx_entry_ctls.u.raw);
+
+ dp->vmx_misc.available = true;
+ rdmsrl(MSR_IA32_VMX_MISC, dp->vmx_misc.u.raw);
+
+ dp->vmx_cr0_fixed0.available = true;
+ rdmsrl(MSR_IA32_VMX_CR0_FIXED0, dp->vmx_cr0_fixed0.u.raw);
+
+ dp->vmx_cr0_fixed1.available = true;
+ rdmsrl(MSR_IA32_VMX_CR0_FIXED1, dp->vmx_cr0_fixed1.u.raw);
+
+ dp->vmx_cr4_fixed0.available = true;
+ rdmsrl(MSR_IA32_VMX_CR4_FIXED0, dp->vmx_cr4_fixed0.u.raw);
+
+ dp->vmx_cr4_fixed1.available = true;
+ rdmsrl(MSR_IA32_VMX_CR4_FIXED1, dp->vmx_cr4_fixed1.u.raw);
+
+ dp->vmx_vmcs_enum.available = true;
+ rdmsrl(MSR_IA32_VMX_VMCS_ENUM, dp->vmx_vmcs_enum.u.raw);
+
+ if ( dp->vmx_procbased_ctls.u.allowed_1.activate_secondary_controls )
+ {
+ dp->vmx_procbased_ctls2.available = true;
+ rdmsrl(MSR_IA32_VMX_PROCBASED_CTLS2, dp->vmx_procbased_ctls2.u.raw);
+
+ if ( dp->vmx_procbased_ctls2.u.allowed_1.enable_ept ||
+ dp->vmx_procbased_ctls2.u.allowed_1.enable_vpid )
+ {
+ dp->vmx_ept_vpid_cap.available = true;
+ rdmsrl(MSR_IA32_VMX_EPT_VPID_CAP, dp->vmx_ept_vpid_cap.u.raw);
+ }
+ }
+
+ if ( dp->vmx_basic.u.default1_zero )
+ {
+ dp->vmx_true_pinbased_ctls.available = true;
+ rdmsrl(MSR_IA32_VMX_TRUE_PINBASED_CTLS,
+ dp->vmx_true_pinbased_ctls.u.raw);
+
+ dp->vmx_true_procbased_ctls.available = true;
+ rdmsrl(MSR_IA32_VMX_TRUE_PROCBASED_CTLS,
+ dp->vmx_true_procbased_ctls.u.raw);
+
+ dp->vmx_true_exit_ctls.available = true;
+ rdmsrl(MSR_IA32_VMX_TRUE_EXIT_CTLS, dp->vmx_true_exit_ctls.u.raw);
+
+ dp->vmx_true_entry_ctls.available = true;
+ rdmsrl(MSR_IA32_VMX_TRUE_ENTRY_CTLS, dp->vmx_true_entry_ctls.u.raw);
+ }
+
+ if ( dp->vmx_procbased_ctls2.u.allowed_1.enable_vm_functions )
+ {
+ dp->vmx_vmfunc.available = true;
+ rdmsrl(MSR_IA32_VMX_VMFUNC, dp->vmx_vmfunc.u.raw);
+ }
+}
+
static void __init calculate_raw_policy(void)
{
struct msr_domain_policy *dp = &raw_msr_domain_policy;
@@ -43,6 +118,8 @@ static void __init calculate_raw_policy(void)
if ( val & MSR_PLATFORM_INFO_CPUID_FAULTING )
dp->plaform_info.cpuid_faulting = true;
}
+
+ calculate_raw_vmx_policy(dp);
}
static void __init calculate_host_policy(void)
--
2.11.0
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next prev parent reply other threads:[~2017-10-13 12:35 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-13 12:35 [PATCH v3 0/6] VMX MSRs policy for Nested Virt: part 1 Sergey Dyasli
2017-10-13 12:35 ` [PATCH v3 1/6] x86/msr: add Raw and Host domain policies Sergey Dyasli
2017-10-13 12:35 ` [PATCH v3 2/6] x86/msr: add VMX MSRs into struct msr_domain_policy Sergey Dyasli
2017-10-13 15:16 ` Andrew Cooper
2017-10-16 7:42 ` Sergey Dyasli
2017-10-16 14:01 ` Andrew Cooper
2017-10-18 7:30 ` Sergey Dyasli
2017-10-13 12:35 ` Sergey Dyasli [this message]
2017-10-13 12:35 ` [PATCH v3 4/6] x86/msr: add VMX MSRs into HVM_max domain policy Sergey Dyasli
2017-10-13 12:35 ` [PATCH v3 5/6] x86/msr: update domain policy on CPUID policy changes Sergey Dyasli
2017-10-13 15:25 ` Andrew Cooper
2017-10-16 7:46 ` Sergey Dyasli
2017-10-13 12:35 ` [PATCH v3 6/6] x86/msr: handle VMX MSRs with guest_rd/wrmsr() Sergey Dyasli
2017-10-13 15:38 ` Andrew Cooper
2017-10-16 14:50 ` Sergey Dyasli
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