From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48257) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1deplb-0005Jv-N1 for qemu-devel@nongnu.org; Mon, 07 Aug 2017 17:40:56 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1deplW-0006Xj-RP for qemu-devel@nongnu.org; Mon, 07 Aug 2017 17:40:51 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55256) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1deplW-0006XM-Ij for qemu-devel@nongnu.org; Mon, 07 Aug 2017 17:40:46 -0400 Date: Tue, 8 Aug 2017 00:40:40 +0300 From: "Michael S. Tsirkin" Message-ID: <1502142009-9370-3-git-send-email-mst@redhat.com> References: <1502142009-9370-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1502142009-9370-1-git-send-email-mst@redhat.com> Subject: [Qemu-devel] [PULL 2/2] cpu: add APIs to allocate/free CPU environment List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , Paolo Bonzini , Alex =?utf-8?Q?Benn=C3=A9e?= , Richard Henderson , Eduardo Habkost , "Emilio G. Cota" , Stefan Hajnoczi , =?utf-8?B?TGx1w61z?= Vilanova These will be implemented and then used by follow-up patches. Signed-off-by: Michael S. Tsirkin --- include/qom/cpu.h | 31 +++++++++++++++++++++++++++++++ qom/cpu.c | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 65 insertions(+) diff --git a/include/qom/cpu.h b/include/qom/cpu.h index 25eefea..e9d30c5 100644 --- a/include/qom/cpu.h +++ b/include/qom/cpu.h @@ -162,6 +162,10 @@ typedef struct CPUClass { void (*dump_statistics)(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, int flags); int64_t (*get_arch_id)(CPUState *cpu); + void * (*alloc_env)(CPUState *cpu); + void (*get_env)(CPUState *cpu, void *env); + void (*set_env)(CPUState *cpu, void *env); + void (*free_env)(CPUState *cpu, void *env); bool (*get_paging_enabled)(const CPUState *cpu); void (*get_memory_mapping)(CPUState *cpu, MemoryMappingList *list, Error **errp); @@ -440,6 +444,33 @@ extern bool mttcg_enabled; #define qemu_tcg_mttcg_enabled() (mttcg_enabled) /** + * cpu_alloc_env: allocate CPU environment structure + * @cpu: allocate environment structure for this CPU + */ +void *cpu_alloc_env(CPUState *cpu); + +/** + * cpu_get_env: retrieve CPU environment structure + * @cpu: CPU to use + * @env: environment structure to use + */ +void cpu_get_env(CPUState *cpu, void *env); + +/** + * cpu_set_env: switch to given CPU environment + * @cpu: CPU to use + * @env: environment structure to use + */ +void cpu_set_env(CPUState *cpu, void *env); + +/** + * cpu_free_env: free CPU environment structure + * @cpu: free environment structure for this CPU + * @env: structure to free + */ +void cpu_free_env(CPUState *cpu, void *env); + +/** * cpu_paging_enabled: * @cpu: The CPU whose state is to be inspected. * diff --git a/qom/cpu.c b/qom/cpu.c index 4f38db0..9201fd9 100644 --- a/qom/cpu.c +++ b/qom/cpu.c @@ -89,6 +89,40 @@ out: return cpu; } +void *cpu_alloc_env(CPUState *cpu) +{ + CPUClass *cc = CPU_GET_CLASS(cpu); + + return cc->alloc_env ? cc->alloc_env(cpu) : NULL; +} + +void cpu_get_env(CPUState *cpu, void *env) +{ + CPUClass *cc = CPU_GET_CLASS(cpu); + + if (cc->get_env) { + cc->get_env(cpu, env); + } +} + +void cpu_set_env(CPUState *cpu, void *env) +{ + CPUClass *cc = CPU_GET_CLASS(cpu); + + if (cc->set_env) { + cc->set_env(cpu, env); + } +} + +void cpu_free_env(CPUState *cpu, void *env) +{ + CPUClass *cc = CPU_GET_CLASS(cpu); + + if (cc->free_env) { + cc->free_env(cpu, env); + } +} + bool cpu_paging_enabled(const CPUState *cpu) { CPUClass *cc = CPU_GET_CLASS(cpu); -- MST