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authorYang Zhong <yang.zhong@intel.com>2022-01-20 17:31:04 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2022-01-28 11:13:33 +0100
commita66bd91f030827742778a9e0da19fe55716b4a60 (patch)
tree381bebd6198fca358b32921f1400b9d71384bc51 /hw/i386
parentd316859f4e28c74ab8b618895d2a5e0a865d3cf1 (diff)
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qapi: Cleanup SGX related comments and restore @section-size
The SGX NUMA patches were merged into Qemu 7.0 release, we need clarify detailed version history information and also change some related comments, which make SGX related comments clearer. The QMP command schema promises backwards compatibility as standard. We temporarily restore "@section-size", which can avoid incompatible API breakage. The "@section-size" will be deprecated in 7.2 version. Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Yang Zhong <yang.zhong@intel.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220120223104.437161-1-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/i386')
-rw-r--r--hw/i386/sgx.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/hw/i386/sgx.c b/hw/i386/sgx.c
index 5de5dd0..a2b318d 100644
--- a/hw/i386/sgx.c
+++ b/hw/i386/sgx.c
@@ -83,7 +83,7 @@ static uint64_t sgx_calc_section_metric(uint64_t low, uint64_t high)
((high & MAKE_64BIT_MASK(0, 20)) << 32);
}
-static SGXEPCSectionList *sgx_calc_host_epc_sections(void)
+static SGXEPCSectionList *sgx_calc_host_epc_sections(uint64_t *size)
{
SGXEPCSectionList *head = NULL, **tail = &head;
SGXEPCSection *section;
@@ -106,6 +106,7 @@ static SGXEPCSectionList *sgx_calc_host_epc_sections(void)
section = g_new0(SGXEPCSection, 1);
section->node = j++;
section->size = sgx_calc_section_metric(ecx, edx);
+ *size += section->size;
QAPI_LIST_APPEND(tail, section);
}
@@ -156,6 +157,7 @@ SGXInfo *qmp_query_sgx_capabilities(Error **errp)
{
SGXInfo *info = NULL;
uint32_t eax, ebx, ecx, edx;
+ uint64_t size = 0;
int fd = qemu_open_old("/dev/sgx_vepc", O_RDWR);
if (fd < 0) {
@@ -173,7 +175,8 @@ SGXInfo *qmp_query_sgx_capabilities(Error **errp)
info->sgx1 = eax & (1U << 0) ? true : false;
info->sgx2 = eax & (1U << 1) ? true : false;
- info->sections = sgx_calc_host_epc_sections();
+ info->sections = sgx_calc_host_epc_sections(&size);
+ info->section_size = size;
close(fd);
@@ -220,12 +223,14 @@ SGXInfo *qmp_query_sgx(Error **errp)
return NULL;
}
+ SGXEPCState *sgx_epc = &pcms->sgx_epc;
info = g_new0(SGXInfo, 1);
info->sgx = true;
info->sgx1 = true;
info->sgx2 = true;
info->flc = true;
+ info->section_size = sgx_epc->size;
info->sections = sgx_get_epc_sections_list();
return info;
@@ -249,6 +254,8 @@ void hmp_info_sgx(Monitor *mon, const QDict *qdict)
info->sgx2 ? "enabled" : "disabled");
monitor_printf(mon, "FLC support: %s\n",
info->flc ? "enabled" : "disabled");
+ monitor_printf(mon, "size: %" PRIu64 "\n",
+ info->section_size);
section_list = info->sections;
for (section = section_list; section; section = section->next) {