[v2,4/4] Revert "tools/libxc: disable x2APIC when using nested virtualization"
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Message ID 20200203121919.15748-5-roger.pau@citrix.com
State New, archived
Headers show
Series
  • x86/vvmx: fixes to interrupt injection
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Commit Message

Roger Pau Monné Feb. 3, 2020, 12:19 p.m. UTC
This reverts commit 7b3c5b70a32303b46d0d051e695f18d72cce5ed0 and
re-enables the usage of x2APIC with nested virtualization.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Acked-by: Wei Liu <wl@xen.org>
---
 tools/libxc/xc_cpuid_x86.c | 11 -----------
 1 file changed, 11 deletions(-)

Patch
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diff --git a/tools/libxc/xc_cpuid_x86.c b/tools/libxc/xc_cpuid_x86.c
index ac38c1406e..2540aa1e1c 100644
--- a/tools/libxc/xc_cpuid_x86.c
+++ b/tools/libxc/xc_cpuid_x86.c
@@ -653,17 +653,6 @@  int xc_cpuid_apply_policy(xc_interface *xch, uint32_t domid,
         p->extd.itsc = true;
         p->basic.vmx = true;
         p->extd.svm = true;
-
-        /*
-         * BODGE: don't announce x2APIC mode when using nested virtualization,
-         * as it doesn't work properly. This should be removed once the
-         * underlying bug(s) are fixed.
-         */
-        rc = xc_hvm_param_get(xch, domid, HVM_PARAM_NESTEDHVM, &val);
-        if ( rc )
-            goto out;
-        if ( val )
-            p->basic.x2apic = false;
     }
 
     rc = x86_cpuid_copy_to_buffer(p, leaves, &nr_leaves);