672f70aa3d
Update to 2.11.1, plus a few other fixes. OBS-URL: https://build.opensuse.org/request/show/579209 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=392
76 lines
2.0 KiB
Diff
76 lines
2.0 KiB
Diff
From fea1c51414bedfc61e5ee31b15e58d638acee4fe Mon Sep 17 00:00:00 2001
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From: Brijesh Singh <brijesh.singh@amd.com>
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Date: Thu, 15 Feb 2018 09:03:24 -0600
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Subject: [PATCH] sev/i386: add support to query PLATFORM_STATUS command
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The command is used to query the SEV API version and build id.
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Cc: Paolo Bonzini <pbonzini@redhat.com>
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Cc: Richard Henderson <rth@twiddle.net>
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Cc: Eduardo Habkost <ehabkost@redhat.com>
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Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
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[BR: FATE#322124]
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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---
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target/i386/sev.c | 33 +++++++++++++++++++++++++++++++++
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1 file changed, 33 insertions(+)
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diff --git a/target/i386/sev.c b/target/i386/sev.c
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index 1fbc3beb16..e3236f5bb7 100644
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--- a/target/i386/sev.c
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+++ b/target/i386/sev.c
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@@ -21,6 +21,9 @@
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#include "trace.h"
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#include "qapi-event.h"
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+#include <sys/ioctl.h>
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+#include <linux/psp-sev.h>
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+
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#define DEFAULT_GUEST_POLICY 0x1 /* disable debug */
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#define DEFAULT_SEV_DEVICE "/dev/sev"
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#define GUEST_POLICY_DBG_BIT 0x1
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@@ -84,6 +87,22 @@ sev_ioctl(int cmd, void *data, int *error)
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return r;
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}
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+static int
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+sev_platform_ioctl(int cmd, void *data, int *error)
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+{
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+ int r;
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+ struct sev_issue_cmd arg;
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+
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+ arg.cmd = cmd;
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+ arg.data = (unsigned long)data;
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+ r = ioctl(sev_fd, SEV_ISSUE_CMD, &arg);
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+ if (error) {
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+ *error = arg.error;
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+ }
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+
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+ return r;
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+}
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+
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static const char *
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fw_error_to_str(int code)
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{
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@@ -399,6 +418,20 @@ sev_enabled(void)
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void
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sev_get_fw_version(uint8_t *major, uint8_t *minor, uint8_t *build)
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{
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+ struct sev_user_data_status status = {};
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+ int r, err;
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+
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+ r = sev_platform_ioctl(SEV_PLATFORM_STATUS, &status, &err);
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+ if (r) {
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+ error_report("%s: failed to get platform status ret=%d"
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+ "fw_error='%d: %s'", __func__, r, err,
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+ fw_error_to_str(err));
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+ return;
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+ }
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+
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+ *major = status.api_major;
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+ *minor = status.api_minor;
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+ *build = status.build;
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}
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void
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