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GET /api/patches/2196565/?format=api
{ "id": 2196565, "url": "http://patchwork.ozlabs.org/api/patches/2196565/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260215052225.22513-14-mohamed@unpredictable.fr/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260215052225.22513-14-mohamed@unpredictable.fr>", "list_archive_url": null, "date": "2026-02-15T05:22:24", "name": "[v3,13/14] whpx: common, i386, arm: rework state levels", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "c94e893178b30855b55609da9999166a686e78ae", "submitter": { "id": 91318, "url": "http://patchwork.ozlabs.org/api/people/91318/?format=api", "name": "Mohamed Mediouni", "email": "mohamed@unpredictable.fr" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260215052225.22513-14-mohamed@unpredictable.fr/mbox/", "series": [ { "id": 492201, "url": "http://patchwork.ozlabs.org/api/series/492201/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=492201", "date": "2026-02-15T05:22:12", "name": "whpx: x86 updates (2026-02)", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/492201/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2196565/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2196565/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=unpredictable.fr 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h=From:To:Subject:Date:Message-ID:MIME-Version:x-icloud-hme;\n b=SonolE8pWHQpLNqtgeuRlJTkGI/x4xC4cBADh/FzLYBUrWDTvEzCOTBquqY5iwIQslhgIWD0lQqIY5ZUaOv+kroU+W4q8Crbz5hEC0kqvAmfKCJPIBzlDQh95acZedgTk4I+N5aJLnM1iEroU3erv91tfz4pOxgakRwkz8o3YftrFc0ePoQAbM/wofi8hUT0AGccHD7pz8uI3qx/ouW5xY8CBo3zpQjPV4SrCdmf3faidcqV5uMsJ/oca0LhiNnH+/r2Hg98l2AsKXb+zOnf7vMq6oambp46aLXBKL1yULsuAcpwgnG0K8EZI1Nkcj6fj3RYHEwyr1v9eJ3jQis7Ug==", "mail-alias-created-date": "1752046281608", "From": "Mohamed Mediouni <mohamed@unpredictable.fr>", "To": "qemu-devel@nongnu.org", "Cc": "Phil Dennis-Jordan <phil@philjordan.eu>,\n Bernhard Beschow <shentey@gmail.com>, Cameron Esfahani <dirty@apple.com>,\n Magnus Kulke <magnuskulke@linux.microsoft.com>, qemu-arm@nongnu.org,\n Peter Maydell <peter.maydell@linaro.org>,\n Roman Bolshakov <rbolshakov@ddn.com>, Paolo Bonzini <pbonzini@redhat.com>,\n Mohamed Mediouni <mohamed@unpredictable.fr>,\n Pedro Barbuda <pbarbuda@microsoft.com>,\n =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= <berrange@redhat.com>, =?utf-8?q?Marc?=\n\t=?utf-8?q?-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>,\n Magnus Kulke <magnus.kulke@linux.microsoft.com>, =?utf-8?q?Philippe_Mathieu?=\n\t=?utf-8?q?-Daud=C3=A9?= <philmd@linaro.org>, Wei Liu <wei.liu@kernel.org>,\n Zhao Liu <zhao1.liu@intel.com>", "Subject": "[PATCH v3 13/14] whpx: common, i386, arm: rework state levels", "Date": "Sun, 15 Feb 2026 06:22:24 +0100", "Message-ID": "<20260215052225.22513-14-mohamed@unpredictable.fr>", "X-Mailer": "git-send-email 2.50.1", "In-Reply-To": "<20260215052225.22513-1-mohamed@unpredictable.fr>", "References": "<20260215052225.22513-1-mohamed@unpredictable.fr>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Authority-Info-Out": "v=2.4 cv=KqVAGGWN c=1 sm=1 tr=0 ts=69915846\n cx=c_apl:c_apl_out:c_pps a=9OgfyREA4BUYbbCgc0Y0oA==:117\n a=9OgfyREA4BUYbbCgc0Y0oA==:17 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22\n a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=N0RsYbKkH9eAvmUnK9wA:9", 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envelope-from=mohamed@unpredictable.fr; helo=outbound.mr.icloud.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "Change state levels from a set of ifdefs to an enum.\nMake register state loads use state levels too.\n\nSigned-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>\n---\n accel/whpx/whpx-common.c | 8 ++++----\n include/system/whpx-accel-ops.h | 16 ++++++++++------\n include/system/whpx-all.h | 6 ++++--\n target/arm/whpx/whpx-all.c | 8 ++++----\n target/i386/whpx/whpx-all.c | 16 ++++++++--------\n 5 files changed, 30 insertions(+), 24 deletions(-)", "diff": "diff --git a/accel/whpx/whpx-common.c b/accel/whpx/whpx-common.c\nindex 245e64a12f..06038dd7f1 100644\n--- a/accel/whpx/whpx-common.c\n+++ b/accel/whpx/whpx-common.c\n@@ -46,7 +46,7 @@ struct WHPDispatch whp_dispatch;\n void flush_cpu_state(CPUState *cpu)\n {\n if (cpu->vcpu_dirty) {\n- whpx_set_registers(cpu, WHPX_SET_RUNTIME_STATE);\n+ whpx_set_registers(cpu, WHPX_LEVEL_RUNTIME_STATE);\n cpu->vcpu_dirty = false;\n }\n }\n@@ -180,7 +180,7 @@ int whpx_last_vcpu_stopping(CPUState *cpu)\n static void do_whpx_cpu_synchronize_state(CPUState *cpu, run_on_cpu_data arg)\n {\n if (!cpu->vcpu_dirty) {\n- whpx_get_registers(cpu);\n+ whpx_get_registers(cpu, WHPX_LEVEL_FULL_STATE);\n cpu->vcpu_dirty = true;\n }\n }\n@@ -188,14 +188,14 @@ static void do_whpx_cpu_synchronize_state(CPUState *cpu, run_on_cpu_data arg)\n static void do_whpx_cpu_synchronize_post_reset(CPUState *cpu,\n run_on_cpu_data arg)\n {\n- whpx_set_registers(cpu, WHPX_SET_RESET_STATE);\n+ whpx_set_registers(cpu, WHPX_LEVEL_RESET_STATE);\n cpu->vcpu_dirty = false;\n }\n \n static void do_whpx_cpu_synchronize_post_init(CPUState *cpu,\n run_on_cpu_data arg)\n {\n- whpx_set_registers(cpu, WHPX_SET_FULL_STATE);\n+ whpx_set_registers(cpu, WHPX_LEVEL_FULL_STATE);\n cpu->vcpu_dirty = false;\n }\n \ndiff --git a/include/system/whpx-accel-ops.h b/include/system/whpx-accel-ops.h\nindex ed9d4c49f4..4b2a732654 100644\n--- a/include/system/whpx-accel-ops.h\n+++ b/include/system/whpx-accel-ops.h\n@@ -22,11 +22,15 @@ void whpx_cpu_synchronize_post_reset(CPUState *cpu);\n void whpx_cpu_synchronize_post_init(CPUState *cpu);\n void whpx_cpu_synchronize_pre_loadvm(CPUState *cpu);\n \n-/* state subset only touched by the VCPU itself during runtime */\n-#define WHPX_SET_RUNTIME_STATE 1\n-/* state subset modified during VCPU reset */\n-#define WHPX_SET_RESET_STATE 2\n-/* full state set, modified during initialization or on vmload */\n-#define WHPX_SET_FULL_STATE 3\n+typedef enum WHPXStateLevel {\n+ /* subset of runtime state for faster returns from vmexit */\n+ WHPX_LEVEL_FAST_RUNTIME_STATE,\n+ /* state subset only touched by the VCPU itself during runtime */\n+ WHPX_LEVEL_RUNTIME_STATE,\n+ /* state subset modified during VCPU reset */\n+ WHPX_LEVEL_RESET_STATE,\n+ /* full state set, modified during initialization or on vmload */\n+ WHPX_LEVEL_FULL_STATE\n+} WHPXStateLevel;\n \n #endif /* TARGET_I386_WHPX_ACCEL_OPS_H */\ndiff --git a/include/system/whpx-all.h b/include/system/whpx-all.h\nindex b831c463b0..2cbea71b14 100644\n--- a/include/system/whpx-all.h\n+++ b/include/system/whpx-all.h\n@@ -2,10 +2,12 @@\n #ifndef SYSTEM_WHPX_ALL_H\n #define SYSTEM_WHPX_ALL_H\n \n+#include \"system/whpx-accel-ops.h\"\n+\n /* Called by whpx-common */\n int whpx_vcpu_run(CPUState *cpu);\n-void whpx_get_registers(CPUState *cpu);\n-void whpx_set_registers(CPUState *cpu, int level);\n+void whpx_get_registers(CPUState *cpu, WHPXStateLevel level);\n+void whpx_set_registers(CPUState *cpu, WHPXStateLevel level);\n int whpx_accel_init(AccelState *as, MachineState *ms);\n void whpx_cpu_instance_init(CPUState *cs);\n HRESULT whpx_set_exception_exit_bitmap(UINT64 exceptions);\ndiff --git a/target/arm/whpx/whpx-all.c b/target/arm/whpx/whpx-all.c\nindex c8d71a252e..a1be82b878 100644\n--- a/target/arm/whpx/whpx-all.c\n+++ b/target/arm/whpx/whpx-all.c\n@@ -418,7 +418,7 @@ int whpx_vcpu_run(CPUState *cpu)\n do {\n bool advance_pc = false;\n if (cpu->vcpu_dirty) {\n- whpx_set_registers(cpu, WHPX_SET_RUNTIME_STATE);\n+ whpx_set_registers(cpu, WHPX_LEVEL_RUNTIME_STATE);\n cpu->vcpu_dirty = false;\n }\n \n@@ -483,7 +483,7 @@ int whpx_vcpu_run(CPUState *cpu)\n default:\n error_report(\"WHPX: Unexpected VP exit code 0x%08x\",\n vcpu->exit_ctx.ExitReason);\n- whpx_get_registers(cpu);\n+ whpx_get_registers(cpu, WHPX_LEVEL_FULL_STATE);\n bql_lock();\n qemu_system_guest_panicked(cpu_get_crash_info(cpu));\n bql_unlock();\n@@ -517,7 +517,7 @@ static void clean_whv_register_value(WHV_REGISTER_VALUE *val)\n memset(val, 0, sizeof(WHV_REGISTER_VALUE));\n }\n \n-void whpx_get_registers(CPUState *cpu)\n+void whpx_get_registers(CPUState *cpu, WHPXStateLevel level)\n {\n ARMCPU *arm_cpu = ARM_CPU(cpu);\n CPUARMState *env = &arm_cpu->env;\n@@ -564,7 +564,7 @@ void whpx_get_registers(CPUState *cpu)\n aarch64_restore_sp(env, arm_current_el(env));\n }\n \n-void whpx_set_registers(CPUState *cpu, int level)\n+void whpx_set_registers(CPUState *cpu, WHPXStateLevel level)\n {\n ARMCPU *arm_cpu = ARM_CPU(cpu);\n CPUARMState *env = &arm_cpu->env;\ndiff --git a/target/i386/whpx/whpx-all.c b/target/i386/whpx/whpx-all.c\nindex 0e8fb0e72e..7bbe63e794 100644\n--- a/target/i386/whpx/whpx-all.c\n+++ b/target/i386/whpx/whpx-all.c\n@@ -367,7 +367,7 @@ static uint64_t whpx_cr8_to_apic_tpr(uint64_t cr8)\n return cr8 << 4;\n }\n \n-void whpx_set_registers(CPUState *cpu, int level)\n+void whpx_set_registers(CPUState *cpu, WHPXStateLevel level)\n {\n struct whpx_state *whpx = &whpx_global;\n AccelCPUState *vcpu = cpu->accel;\n@@ -386,7 +386,7 @@ void whpx_set_registers(CPUState *cpu, int level)\n * Following MSRs have side effects on the guest or are too heavy for\n * runtime. Limit them to full state update.\n */\n- if (level >= WHPX_SET_RESET_STATE) {\n+ if (level >= WHPX_LEVEL_RESET_STATE) {\n whpx_set_tsc(cpu);\n }\n \n@@ -582,7 +582,7 @@ static void whpx_get_xcrs(CPUState *cpu)\n cpu_env(cpu)->xcr0 = xcr0.Reg64;\n }\n \n-void whpx_get_registers(CPUState *cpu)\n+void whpx_get_registers(CPUState *cpu, WHPXStateLevel level)\n {\n struct whpx_state *whpx = &whpx_global;\n AccelCPUState *vcpu = cpu->accel;\n@@ -768,10 +768,10 @@ static int emulate_instruction(CPUState *cpu, const uint8_t *insn_bytes, size_t\n struct x86_decode decode = { 0 };\n x86_insn_stream stream = { .bytes = insn_bytes, .len = insn_len };\n \n- whpx_get_registers(cpu);\n+ whpx_get_registers(cpu, WHPX_LEVEL_FAST_RUNTIME_STATE);\n decode_instruction_stream(env, &decode, &stream);\n exec_instruction(env, &decode);\n- whpx_set_registers(cpu, WHPX_SET_RUNTIME_STATE);\n+ whpx_set_registers(cpu, WHPX_LEVEL_FAST_RUNTIME_STATE);\n \n return 0;\n }\n@@ -1587,7 +1587,7 @@ int whpx_vcpu_run(CPUState *cpu)\n \n do {\n if (cpu->vcpu_dirty) {\n- whpx_set_registers(cpu, WHPX_SET_RUNTIME_STATE);\n+ whpx_set_registers(cpu, WHPX_LEVEL_RUNTIME_STATE);\n cpu->vcpu_dirty = false;\n }\n \n@@ -1794,7 +1794,7 @@ int whpx_vcpu_run(CPUState *cpu)\n break;\n }\n case WHvRunVpExitReasonException:\n- whpx_get_registers(cpu);\n+ whpx_get_registers(cpu, WHPX_LEVEL_FULL_STATE);\n \n if ((vcpu->exit_ctx.VpException.ExceptionType ==\n WHvX64ExceptionTypeDebugTrapOrFault) &&\n@@ -1826,7 +1826,7 @@ int whpx_vcpu_run(CPUState *cpu)\n default:\n error_report(\"WHPX: Unexpected VP exit code %d\",\n vcpu->exit_ctx.ExitReason);\n- whpx_get_registers(cpu);\n+ whpx_get_registers(cpu, WHPX_LEVEL_FULL_STATE);\n bql_lock();\n qemu_system_guest_panicked(cpu_get_crash_info(cpu));\n bql_unlock();\n", "prefixes": [ "v3", "13/14" ] }