qemu/target-i386-kvm-Fix-the-resettable-info-when-emulate.patch
Jiabo Feng 4f059b938c QEMU update to version 8.2.0-18:
- hw/loongarch/virt: Fix FDT memory node address width
- hw/loongarch: Fix fdt memory node wrong 'reg'
- load_elf: fix iterator's type for elf file processing
- migration/colo: Fix bdrv_graph_rdlock_main_loop: Assertion `!qemu_in_…
- target/i386: no single-step exception after MOV or POP SS
- char-stdio: Restore blocking mode of stdout on exit
- backends/cryptodev-builtin: Fix local_error leaks
- target/loongarch: fix a wrong print in cpu dump
- virtio-pci: fix use of a released vector
- target/arm: Disable SVE extensions when SVE is disabled
- hw/misc/bcm2835_property: Fix handling of FRAMEBUFFER_SET_PALETTE
- target/i386: Introduce SapphireRapids-v3 to add missing features
- virtio-net: Ensure queue index fits with RSS (CVE-2024-6505)
- nbd/server: CVE-2024-7409: Avoid use-after-free when closing server
- update io/trace-events. Parameters should remain consistent.
- update docs/tools/virtfs-proxy-helper.rst. This place is spelled wrong.
- kvm: Add support for CSV2 reboot
- target/i386/kvm: Fix the resettable info when emulate Hygon CSV2 guest
- target/i386: get/set/migrate GHCB state
- target/i386: csv: Add support for migrate VMSA for CSV2 guest
- migration/ram: Accelerate the loading of CSV guest's encrypted pages
- migration/ram: Accelerate the transmission of CSV guest's encrypted pages
- target/i386: csv: add support to load incoming encrypted pages queued in the CMD list
- target/i386: csv: add support to queue the incoming page into a list
- target/i386: csv: add support to encrypt the outgoing pages in the list queued before.
- target/i386: csv: add support to queue the outgoing page into a list
- target/i386: csv: Read cert chain from file when prepared for CSV live migration
- target/i386: Introduce header file csv.h
- migration/ram: Fix calculation of gfn correpond to a page in ramblock
- target/i386: sev: Clear shared_regions_list when reboot CSV Guest
- migration/ram: Force encrypted status for VGA vram
- target/i386: sev: Return 0 if sev_send_get_packet_len() fails
- kvm: Add support for userspace MSR filtering and handling of MSR_KVM_MIGRATION_CONTROL.
- migration/ram: Force encrypted status for flash0 & flash1 devices.
- migration/ram: add support to send encrypted pages
- migration: add support to migrate shared regions list
- kvm: Add support for SEV shared regions list and KVM_EXIT_HYPERCALL.
- target/i386: sev: add support to load incoming encrypted page
- target/i386: sev: add support to encrypt the outgoing page
- target/i386: sev: do not create launch context for an incoming guest
- target/i386: sev: provide callback to setup outgoing context
- confidential guest support: introduce ConfidentialGuestMemoryEncryptionOps for encrypted VMs
- migration.json: add AMD SEV specific migration parameters
- doc: update AMD SEV to include Live migration flow
- crypto/tlscredspsk: Free username on finalize
- hw/nvme: fix leak of uninitialized memory in io_mgmt_recv
- hw/display/vhost-user-gpu.c: fix vhost_user_gpu_chr_read()
- cvm : Implement command blacklist for cvm security enhancement
- crypto: Introduce SM3 hash hmac pbkdf algorithm
- virtio-net: Use virtual time for RSC timers
- vvfat: Fix bug in writing to middle of file
- hw/core/ptimer: fix timer zero period condition for freq > 1GHz
- hw/misc: support vpsp

Signed-off-by: Jiabo Feng <fengjiabo1@huawei.com>
2024-09-18 15:23:53 +08:00

180 lines
5.3 KiB
Diff

From 366c11c56875ae053043c48c8b93349c6e3125cc Mon Sep 17 00:00:00 2001
From: hanliyang <hanliyang@hygon.cn>
Date: Sun, 19 Jun 2022 16:49:45 +0800
Subject: [PATCH] target/i386/kvm: Fix the resettable info when emulate Hygon
CSV2 guest
SEV-ES guest will be terminated by QEMU when receive reboot request.
In order to support reboot for CSV2 guest, report resettable in
kvm_arch_cpu_check_are_resettable(). But the CSV2 guest is still not
resettable if it was migrated to target machine.
Signed-off-by: hanliyang <hanliyang@hygon.cn>
---
target/i386/csv-sysemu-stub.c | 16 ++++++++++++++++
target/i386/csv.c | 20 ++++++++++++++++++++
target/i386/csv.h | 2 ++
target/i386/kvm/csv-stub.c | 17 +++++++++++++++++
target/i386/kvm/kvm.c | 4 ++++
target/i386/kvm/meson.build | 1 +
target/i386/meson.build | 1 +
target/i386/sev.c | 9 +++++++++
8 files changed, 70 insertions(+)
create mode 100644 target/i386/csv-sysemu-stub.c
create mode 100644 target/i386/csv.c
create mode 100644 target/i386/kvm/csv-stub.c
diff --git a/target/i386/csv-sysemu-stub.c b/target/i386/csv-sysemu-stub.c
new file mode 100644
index 0000000000..5874e4cc1d
--- /dev/null
+++ b/target/i386/csv-sysemu-stub.c
@@ -0,0 +1,16 @@
+/*
+ * QEMU CSV system stub
+ *
+ * Copyright: Hygon Info Technologies Ltd. 2022
+ *
+ * Author:
+ * Jiang Xin <jiangxin@hygon.cn>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "sev.h"
+#include "csv.h"
diff --git a/target/i386/csv.c b/target/i386/csv.c
new file mode 100644
index 0000000000..88fb05ac37
--- /dev/null
+++ b/target/i386/csv.c
@@ -0,0 +1,20 @@
+/*
+ * QEMU CSV support
+ *
+ * Copyright: Hygon Info Technologies Ltd. 2022
+ *
+ * Author:
+ * Jiang Xin <jiangxin@hygon.cn>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+
+#include "cpu.h"
+#include "sev.h"
+#include "csv.h"
+
+bool csv_kvm_cpu_reset_inhibit;
diff --git a/target/i386/csv.h b/target/i386/csv.h
index 47741a0a4f..ac4bb5bee1 100644
--- a/target/i386/csv.h
+++ b/target/i386/csv.h
@@ -46,6 +46,8 @@ static bool __attribute__((unused)) is_hygon_cpu(void)
#define CSV_OUTGOING_PAGE_WINDOW_SIZE (4094 * TARGET_PAGE_SIZE)
+extern bool csv_kvm_cpu_reset_inhibit;
+
typedef struct CsvBatchCmdList CsvBatchCmdList;
typedef void (*CsvDestroyCmdNodeFn) (void *data);
diff --git a/target/i386/kvm/csv-stub.c b/target/i386/kvm/csv-stub.c
new file mode 100644
index 0000000000..4d1376f268
--- /dev/null
+++ b/target/i386/kvm/csv-stub.c
@@ -0,0 +1,17 @@
+/*
+ * QEMU CSV stub
+ *
+ * Copyright Hygon Info Technologies Ltd. 2024
+ *
+ * Authors:
+ * Han Liyang <hanliyang@hygon.cn>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include "qemu/osdep.h"
+#include "csv.h"
+
+bool csv_kvm_cpu_reset_inhibit;
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index 9e65242739..2866a6d0ec 100644
--- a/target/i386/kvm/kvm.c
+++ b/target/i386/kvm/kvm.c
@@ -32,6 +32,7 @@
#include "sysemu/runstate.h"
#include "kvm_i386.h"
#include "sev.h"
+#include "csv.h"
#include "xen-emu.h"
#include "hyperv.h"
#include "hyperv-proto.h"
@@ -5710,6 +5711,9 @@ bool kvm_has_waitpkg(void)
bool kvm_arch_cpu_check_are_resettable(void)
{
+ if (is_hygon_cpu())
+ return !csv_kvm_cpu_reset_inhibit;
+
return !sev_es_enabled();
}
diff --git a/target/i386/kvm/meson.build b/target/i386/kvm/meson.build
index 84d9143e60..3c3f8cf93c 100644
--- a/target/i386/kvm/meson.build
+++ b/target/i386/kvm/meson.build
@@ -8,6 +8,7 @@ i386_kvm_ss.add(files(
i386_kvm_ss.add(when: 'CONFIG_XEN_EMU', if_true: files('xen-emu.c'))
i386_kvm_ss.add(when: 'CONFIG_SEV', if_false: files('sev-stub.c'))
+i386_kvm_ss.add(when: 'CONFIG_CSV', if_false: files('csv-stub.c'))
i386_system_ss.add(when: 'CONFIG_HYPERV', if_true: files('hyperv.c'), if_false: files('hyperv-stub.c'))
diff --git a/target/i386/meson.build b/target/i386/meson.build
index 7c74bfa859..594a0a6abf 100644
--- a/target/i386/meson.build
+++ b/target/i386/meson.build
@@ -21,6 +21,7 @@ i386_system_ss.add(files(
'cpu-sysemu.c',
))
i386_system_ss.add(when: 'CONFIG_SEV', if_true: files('sev.c'), if_false: files('sev-sysemu-stub.c'))
+i386_system_ss.add(when: 'CONFIG_CSV', if_true: files('csv.c'), if_false: files('csv-sysemu-stub.c'))
i386_user_ss = ss.source_set()
diff --git a/target/i386/sev.c b/target/i386/sev.c
index 7744378112..2c6aecd1a3 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -1190,6 +1190,15 @@ int sev_kvm_init(ConfidentialGuestSupport *cgs, Error **errp)
error_setg(errp, "%s: failed to create encryption context", __func__);
goto err;
}
+ } else {
+ /*
+ * The CSV2 guest is not resettable after migrated to target machine,
+ * set csv_kvm_cpu_reset_inhibit to true to indicate the CSV2 guest is
+ * not resettable.
+ */
+ if (is_hygon_cpu() && sev_es_enabled()) {
+ csv_kvm_cpu_reset_inhibit = true;
+ }
}
ram_block_notifier_add(&sev_ram_notifier);
--
2.41.0.windows.1