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Lunev\" via" Reply-To: "Justin Terry \(VM\)" Cc: pbonzini@redhat.com, "Justin Terry \(VM\)" , ehabkost@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP The use of WHvGetExitContextSize will break ABI compatibility if the platform changes the context size while a qemu compiled executable does not recompile. To avoid this we now use sizeof and let the platform determine which version of the struction was passed for ABI compatibility. Signed-off-by: Justin Terry (VM) --- target/i386/whpx-all.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/target/i386/whpx-all.c b/target/i386/whpx-all.c index 47a6935288..24387bebad 100644 --- a/target/i386/whpx-all.c +++ b/target/i386/whpx-all.c @@ -32,7 +32,6 @@ struct whpx_state { uint64_t mem_quota; WHV_PARTITION_HANDLE partition; - uint32_t exit_ctx_size; }; static const WHV_REGISTER_NAME whpx_register_names[] = { @@ -899,7 +898,7 @@ static int whpx_vcpu_run(CPUState *cpu) } hr = WHvRunVirtualProcessor(whpx->partition, cpu->cpu_index, - &vcpu->exit_ctx, whpx->exit_ctx_size); + &vcpu->exit_ctx, sizeof(vcpu->exit_ctx)); if (FAILED(hr)) { error_report("WHPX: Failed to exec a virtual processor," @@ -1042,8 +1041,7 @@ int whpx_init_vcpu(CPUState *cpu) } } - vcpu = g_malloc0(FIELD_OFFSET(struct whpx_vcpu, exit_ctx) + - whpx->exit_ctx_size); + vcpu = g_malloc0(sizeof(struct whpx_vcpu)); if (!vcpu) { error_report("WHPX: Failed to allocte VCPU context."); @@ -1300,9 +1298,6 @@ static int whpx_accel_init(MachineState *ms) goto error; } - whpx->exit_ctx_size = WHvGetRunExitContextSize(); - assert(whpx->exit_ctx_size); - whpx_memory_init(); cpu_interrupt_handler = whpx_handle_interrupt;