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From: Roger Pau Monne <roger.pau@citrix.com>
To: <xen-devel@lists.xenproject.org>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>, Wei Liu <wl@xen.org>,
	Roger Pau Monne <roger.pau@citrix.com>
Subject: [Xen-devel] [PATCH v2 4/4] Revert "tools/libxc: disable x2APIC when using nested virtualization"
Date: Mon, 3 Feb 2020 13:19:19 +0100	[thread overview]
Message-ID: <20200203121919.15748-5-roger.pau@citrix.com> (raw)
In-Reply-To: <20200203121919.15748-1-roger.pau@citrix.com>

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(-)

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);
-- 
2.25.0


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      parent reply	other threads:[~2020-02-03 12:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-03 12:19 [Xen-devel] [PATCH v2 0/4] x86/vvmx: fixes to interrupt injection Roger Pau Monne
2020-02-03 12:19 ` [Xen-devel] [PATCH v2 1/4] x86/vvmx: fix virtual interrupt injection when Ack on exit control is used Roger Pau Monne
2020-02-04  1:35   ` Tian, Kevin
2020-02-04  9:23     ` Roger Pau Monné
2020-02-04  9:49       ` Jan Beulich
2020-02-04 10:05         ` Tian, Kevin
2020-02-03 12:19 ` [Xen-devel] [PATCH v2 2/4] x86/vvmx: fix VM_EXIT_ACK_INTR_ON_EXIT handling Roger Pau Monne
2020-02-04  1:39   ` Tian, Kevin
2020-02-04  9:26     ` Roger Pau Monné
2020-02-03 12:19 ` [Xen-devel] [PATCH v2 3/4] x86/vvmx: don't enable interrupt window when using virt intr delivery Roger Pau Monne
2020-02-04  1:40   ` Tian, Kevin
2020-02-03 12:19 ` Roger Pau Monne [this message]

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