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From: Tom Lendacky <thomas.lendacky@amd.com>
To: qemu-devel@nongnu.org, kvm@vger.kernel.org
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	Eduardo Habkost <ehabkost@redhat.com>,
	Richard Henderson <rth@twiddle.net>,
	Connor Kuehl <ckuehl@redhat.com>,
	Brijesh Singh <brijesh.singh@amd.com>,
	Jiri Slaby <jslaby@suse.cz>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Sean Christopherson <seanjc@google.com>,
	Richard Henderson <richard.henderson@linaro.org>
Subject: [PATCH v6 2/6] sev/i386: Require in-kernel irqchip support for SEV-ES guests
Date: Tue, 26 Jan 2021 11:36:45 -0600	[thread overview]
Message-ID: <e9aec5941e613456f0757f5a73869cdc5deea105.1611682609.git.thomas.lendacky@amd.com> (raw)
In-Reply-To: <cover.1611682609.git.thomas.lendacky@amd.com>

From: Tom Lendacky <thomas.lendacky@amd.com>

In prep for AP booting, require the use of in-kernel irqchip support. This
lessens the Qemu support burden required to boot APs.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
 target/i386/sev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/target/i386/sev.c b/target/i386/sev.c
index fce2128c07..ddec7ebaa7 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -776,6 +776,12 @@ sev_guest_init(const char *id)
     sev->api_minor = status.api_minor;
 
     if (sev_es_enabled()) {
+        if (!kvm_kernel_irqchip_allowed()) {
+            error_report("%s: SEV-ES guests require in-kernel irqchip support",
+                         __func__);
+            goto err;
+        }
+
         if (!(status.flags & SEV_STATUS_FLAGS_CONFIG_ES)) {
             error_report("%s: guest policy requires SEV-ES, but "
                          "host SEV-ES support unavailable",
-- 
2.30.0


WARNING: multiple messages have this Message-ID (diff)
From: Tom Lendacky <thomas.lendacky@amd.com>
To: qemu-devel@nongnu.org, kvm@vger.kernel.org
Cc: Brijesh Singh <brijesh.singh@amd.com>,
	Eduardo Habkost <ehabkost@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Connor Kuehl <ckuehl@redhat.com>,
	Sean Christopherson <seanjc@google.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Richard Henderson <richard.henderson@linaro.org>,
	"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>, Jiri Slaby <jslaby@suse.cz>,
	Richard Henderson <rth@twiddle.net>
Subject: [PATCH v6 2/6] sev/i386: Require in-kernel irqchip support for SEV-ES guests
Date: Tue, 26 Jan 2021 11:36:45 -0600	[thread overview]
Message-ID: <e9aec5941e613456f0757f5a73869cdc5deea105.1611682609.git.thomas.lendacky@amd.com> (raw)
In-Reply-To: <cover.1611682609.git.thomas.lendacky@amd.com>

From: Tom Lendacky <thomas.lendacky@amd.com>

In prep for AP booting, require the use of in-kernel irqchip support. This
lessens the Qemu support burden required to boot APs.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
 target/i386/sev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/target/i386/sev.c b/target/i386/sev.c
index fce2128c07..ddec7ebaa7 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -776,6 +776,12 @@ sev_guest_init(const char *id)
     sev->api_minor = status.api_minor;
 
     if (sev_es_enabled()) {
+        if (!kvm_kernel_irqchip_allowed()) {
+            error_report("%s: SEV-ES guests require in-kernel irqchip support",
+                         __func__);
+            goto err;
+        }
+
         if (!(status.flags & SEV_STATUS_FLAGS_CONFIG_ES)) {
             error_report("%s: guest policy requires SEV-ES, but "
                          "host SEV-ES support unavailable",
-- 
2.30.0



  parent reply	other threads:[~2021-01-26 22:39 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-26 17:36 [PATCH v6 0/6] Qemu SEV-ES guest support Tom Lendacky
2021-01-26 17:36 ` Tom Lendacky
2021-01-26 17:36 ` [PATCH v6 1/6] sev/i386: Add initial support for SEV-ES Tom Lendacky
2021-01-26 17:36   ` Tom Lendacky
2021-01-29 17:39   ` Venu Busireddy
2021-01-29 17:39     ` Venu Busireddy
2021-01-26 17:36 ` Tom Lendacky [this message]
2021-01-26 17:36   ` [PATCH v6 2/6] sev/i386: Require in-kernel irqchip support for SEV-ES guests Tom Lendacky
2021-01-29 17:41   ` Venu Busireddy
2021-01-29 17:41     ` Venu Busireddy
2021-01-26 17:36 ` [PATCH v6 3/6] sev/i386: Allow AP booting under SEV-ES Tom Lendacky
2021-01-26 17:36   ` Tom Lendacky
2021-01-29 17:44   ` Venu Busireddy
2021-01-29 17:44     ` Venu Busireddy
2021-02-01 18:48     ` Tom Lendacky
2021-02-01 18:48       ` Tom Lendacky
2021-01-26 17:36 ` [PATCH v6 4/6] sev/i386: Don't allow a system reset under an SEV-ES guest Tom Lendacky
2021-01-26 17:36   ` Tom Lendacky
2021-01-29 17:44   ` Venu Busireddy
2021-01-29 17:44     ` Venu Busireddy
2021-01-26 17:36 ` [PATCH v6 5/6] kvm/i386: Use a per-VM check for SMM capability Tom Lendacky
2021-01-26 17:36   ` Tom Lendacky
2021-01-29 17:46   ` Venu Busireddy
2021-01-29 17:46     ` Venu Busireddy
2021-01-26 17:36 ` [PATCH v6 6/6] sev/i386: Enable an SEV-ES guest based on SEV policy Tom Lendacky
2021-01-26 17:36   ` Tom Lendacky
2021-01-29 17:46   ` Venu Busireddy
2021-01-29 17:46     ` Venu Busireddy
2021-02-05 10:59 ` [PATCH v6 0/6] Qemu SEV-ES guest support Paolo Bonzini
2021-02-05 10:59   ` Paolo Bonzini
2021-02-08 15:48   ` Tom Lendacky
2021-02-08 15:48     ` Tom Lendacky
2021-02-08 16:31     ` Paolo Bonzini
2021-02-08 16:31       ` Paolo Bonzini
2021-02-08 17:35       ` Tom Lendacky
2021-02-08 17:35         ` Tom Lendacky

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