Displaying 20 results from an estimated 24 matches for "valid_bitmap".
2020 Apr 28
0
[PATCH v3 02/75] KVM: SVM: Add GHCB Accessor functions
...R0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
+/* GHCB Accessor functions */
+
+#define DEFINE_GHCB_INDICES(field) \
+ u16 idx = offsetof(struct vmcb_save_area, field) / 8; \
+ u16 byte_idx = idx / 8; \
+ u16 bit_idx = idx % 8; \
+ BUILD_BUG_ON(byte_idx > ARRAY_SIZE(ghcb->save.valid_bitmap));
+
+#define GHCB_SET_VALID(ghcb, field) \
+ { \
+ DEFINE_GHCB_INDICES(field) \
+ (ghcb)->save.valid_bitmap[byte_idx] |= BIT(bit_idx); \
+ }
+
+#define DEFINE_GHCB_SETTER(field) \
+ static inline void \
+ ghcb_set_##field(struct ghcb *ghcb, u64 value) \
+ { \
+...
2020 Jul 24
0
[PATCH v5 02/75] KVM: SVM: Add GHCB Accessor functions
...R0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
+/* GHCB Accessor functions */
+
+#define DEFINE_GHCB_INDICES(field) \
+ u16 idx = offsetof(struct vmcb_save_area, field) / 8; \
+ u16 byte_idx = idx / 8; \
+ u16 bit_idx = idx % 8; \
+ BUILD_BUG_ON(byte_idx > ARRAY_SIZE(ghcb->save.valid_bitmap));
+
+#define GHCB_SET_VALID(ghcb, field) \
+ { \
+ DEFINE_GHCB_INDICES(field) \
+ (ghcb)->save.valid_bitmap[byte_idx] |= BIT(bit_idx); \
+ }
+
+#define DEFINE_GHCB_SETTER(field) \
+ static inline void \
+ ghcb_set_##field(struct ghcb *ghcb, u64 value) \
+ { \
+...
2020 Aug 24
0
[PATCH v6 03/76] KVM: SVM: Add GHCB Accessor functions
...P_IDX(field) \
+ (offsetof(struct vmcb_save_area, field) / sizeof(u64))
+
+#define DEFINE_GHCB_ACCESSORS(field) \
+ static inline bool ghcb_##field##_is_valid(const struct ghcb *ghcb) \
+ { \
+ return test_bit(GHCB_BITMAP_IDX(field), \
+ (unsigned long *)&ghcb->save.valid_bitmap); \
+ } \
+ \
+ static inline void ghcb_set_##field(struct ghcb *ghcb, u64 value) \
+ { \
+ __set_bit(GHCB_BITMAP_IDX(field), \
+ (unsigned long *)&ghcb->save.valid_bitmap); \
+ ghcb->save.field = value; \
+ }
+
+DEFINE_GHCB_ACCESSORS(cpl)
+DEFINE_GH...
2020 Apr 28
0
[PATCH v3 40/75] x86/sev-es: Compile early handler code into kernel image
...static bool __maybe_unused sev_es_negotiate_protocol(void)
{
u64 val;
@@ -46,7 +46,7 @@ static bool sev_es_negotiate_protocol(void)
return true;
}
-static void vc_ghcb_invalidate(struct ghcb *ghcb)
+static void __maybe_unused vc_ghcb_invalidate(struct ghcb *ghcb)
{
memset(ghcb->save.valid_bitmap, 0, sizeof(ghcb->save.valid_bitmap));
}
@@ -58,9 +58,9 @@ static bool vc_decoding_needed(unsigned long exit_code)
exit_code <= SVM_EXIT_LAST_EXCP);
}
-static enum es_result vc_init_em_ctxt(struct es_em_ctxt *ctxt,
- struct pt_regs *regs,
- unsigned long exit_code)
+s...
2020 Apr 28
0
[PATCH v3 42/75] x86/sev-es: Setup GHCB based boot #VC handler
...static bool sev_es_negotiate_protocol(void)
{
u64 val;
@@ -46,7 +46,7 @@ static bool __maybe_unused sev_es_negotiate_protocol(void)
return true;
}
-static void __maybe_unused vc_ghcb_invalidate(struct ghcb *ghcb)
+static void vc_ghcb_invalidate(struct ghcb *ghcb)
{
memset(ghcb->save.valid_bitmap, 0, sizeof(ghcb->save.valid_bitmap));
}
@@ -58,9 +58,9 @@ static bool vc_decoding_needed(unsigned long exit_code)
exit_code <= SVM_EXIT_LAST_EXCP);
}
-static enum es_result __maybe_unused vc_init_em_ctxt(struct es_em_ctxt *ctxt,
- struct pt_regs *regs,
- unsigned l...
2020 Sep 07
0
[PATCH v7 40/72] x86/sev-es: Setup GHCB based boot #VC handler
...static bool sev_es_negotiate_protocol(void)
{
u64 val;
@@ -46,7 +46,7 @@ static bool __maybe_unused sev_es_negotiate_protocol(void)
return true;
}
-static void __maybe_unused vc_ghcb_invalidate(struct ghcb *ghcb)
+static void vc_ghcb_invalidate(struct ghcb *ghcb)
{
memset(ghcb->save.valid_bitmap, 0, sizeof(ghcb->save.valid_bitmap));
}
@@ -58,9 +58,9 @@ static bool vc_decoding_needed(unsigned long exit_code)
exit_code <= SVM_EXIT_LAST_EXCP);
}
-static enum es_result __maybe_unused vc_init_em_ctxt(struct es_em_ctxt *ctxt,
- struct pt_regs *regs,
- unsigned l...
2020 Feb 11
0
[PATCH 18/62] x86/boot/compressed/64: Setup GHCB Based VC Exception handler
...IT();
+ val = read_ghcb_msr();
+
+ if (GHCB_INFO(val) != GHCB_SEV_INFO)
+ return false;
+
+ if (GHCB_PROTO_MAX(val) < GHCB_PROTO_OUR ||
+ GHCB_PROTO_MIN(val) > GHCB_PROTO_OUR)
+ return false;
+
+ return true;
+}
+
+static void ghcb_invalidate(struct ghcb *ghcb)
+{
+ memset(ghcb->save.valid_bitmap, 0, sizeof(ghcb->save.valid_bitmap));
+}
+
+static bool valid_cs(struct pt_regs *regs)
+{
+ return (regs->cs == __KERNEL_CS) || (regs->cs == __USER_CS);
+}
+
+static enum es_result decode_insn(struct es_em_ctxt *ctxt)
+{
+ char buffer[MAX_INSN_SIZE];
+ enum es_result ret;
+ unsigned int i;...
2020 Feb 11
0
[PATCH 01/62] KVM: SVM: Add GHCB definitions
.../* rsp already available at 0x01d8 */
+ u64 rbp;
+ u64 rsi;
+ u64 rdi;
+ u64 r8;
+ u64 r9;
+ u64 r10;
+ u64 r11;
+ u64 r12;
+ u64 r13;
+ u64 r14;
+ u64 r15;
+ u8 reserved_10[16];
+ u64 sw_exit_code;
+ u64 sw_exit_info_1;
+ u64 sw_exit_info_2;
+ u64 sw_scratch;
+ u8 reserved_11[56];
+ u64 xcr0;
+ u8 valid_bitmap[16];
+ u64 x87_state_gpa;
+ u8 reserved_12[1016];
+};
+
+struct __attribute__ ((__packed__)) ghcb {
+ struct vmcb_save_area save;
+
+ u8 shared_buffer[2032];
+
+ u8 reserved_1[10];
+ u16 protocol_version; /* negotiated SEV-ES/GHCB protocol version */
+ u32 ghcb_usage;
};
struct __attribute__ ((...
2020 Apr 28
0
[PATCH v3 01/75] KVM: SVM: Add GHCB definitions
.../* rsp already available at 0x01d8 */
+ u64 rbp;
+ u64 rsi;
+ u64 rdi;
+ u64 r8;
+ u64 r9;
+ u64 r10;
+ u64 r11;
+ u64 r12;
+ u64 r13;
+ u64 r14;
+ u64 r15;
+ u8 reserved_10[16];
+ u64 sw_exit_code;
+ u64 sw_exit_info_1;
+ u64 sw_exit_info_2;
+ u64 sw_scratch;
+ u8 reserved_11[56];
+ u64 xcr0;
+ u8 valid_bitmap[16];
+ u64 x87_state_gpa;
+ u8 reserved_12[1016];
+};
+
+struct __attribute__ ((__packed__)) ghcb {
+ struct vmcb_save_area save;
+
+ u8 shared_buffer[2032];
+
+ u8 reserved_1[10];
+ u16 protocol_version; /* negotiated SEV-ES/GHCB protocol version */
+ u32 ghcb_usage;
};
struct __attribute__ ((...
2020 Apr 28
0
[PATCH v3 03/75] KVM: SVM: Use __packed shorthand
...{
u16 selector;
u16 attrib;
u32 limit;
u64 base;
-};
+} __packed;
-struct __attribute__ ((__packed__)) vmcb_save_area {
+struct vmcb_save_area {
struct vmcb_seg es;
struct vmcb_seg cs;
struct vmcb_seg ss;
@@ -233,9 +233,9 @@ struct __attribute__ ((__packed__)) vmcb_save_area {
u8 valid_bitmap[16];
u64 x87_state_gpa;
u8 reserved_12[1016];
-};
+} __packed;
-struct __attribute__ ((__packed__)) ghcb {
+struct ghcb {
struct vmcb_save_area save;
u8 shared_buffer[2032];
@@ -243,12 +243,12 @@ struct __attribute__ ((__packed__)) ghcb {
u8 reserved_1[10];
u16 protocol_version; /*...
2020 Jul 14
0
[PATCH v4 03/75] KVM: SVM: Use __packed shorthand
...ector;
u16 attrib;
u32 limit;
u64 base;
-};
+} __packed;
-struct __attribute__ ((__packed__)) vmcb_save_area {
+struct vmcb_save_area {
struct vmcb_seg es;
struct vmcb_seg cs;
struct vmcb_seg ss;
@@ -231,9 +231,9 @@ struct __attribute__ ((__packed__)) vmcb_save_area {
u64 xcr0;
u8 valid_bitmap[16];
u64 x87_state_gpa;
-};
+} __packed;
-struct __attribute__ ((__packed__)) ghcb {
+struct ghcb {
struct vmcb_save_area save;
u8 reserved_save[2048 - sizeof(struct vmcb_save_area)];
@@ -242,7 +242,7 @@ struct __attribute__ ((__packed__)) ghcb {
u8 reserved_1[10];
u16 protocol_versio...
2020 Aug 24
0
[PATCH v6 04/76] KVM: SVM: Use __packed shorthand
...ector;
u16 attrib;
u32 limit;
u64 base;
-};
+} __packed;
-struct __attribute__ ((__packed__)) vmcb_save_area {
+struct vmcb_save_area {
struct vmcb_seg es;
struct vmcb_seg cs;
struct vmcb_seg ss;
@@ -231,7 +231,7 @@ struct __attribute__ ((__packed__)) vmcb_save_area {
u64 xcr0;
u8 valid_bitmap[16];
u64 x87_state_gpa;
-};
+} __packed;
struct ghcb {
struct vmcb_save_area save;
@@ -252,11 +252,11 @@ static inline void __unused_size_checks(void)
BUILD_BUG_ON(sizeof(struct ghcb) != 4096);
}
-struct __attribute__ ((__packed__)) vmcb {
+struct vmcb {
struct vmcb_control_area contr...
2020 Aug 24
0
[PATCH v6 02/76] KVM: SVM: Add GHCB definitions
.../* rsp already available at 0x01d8 */
+ u64 rbp;
+ u64 rsi;
+ u64 rdi;
+ u64 r8;
+ u64 r9;
+ u64 r10;
+ u64 r11;
+ u64 r12;
+ u64 r13;
+ u64 r14;
+ u64 r15;
+ u8 reserved_10[16];
+ u64 sw_exit_code;
+ u64 sw_exit_info_1;
+ u64 sw_exit_info_2;
+ u64 sw_scratch;
+ u8 reserved_11[56];
+ u64 xcr0;
+ u8 valid_bitmap[16];
+ u64 x87_state_gpa;
};
+struct ghcb {
+ struct vmcb_save_area save;
+ u8 reserved_save[2048 - sizeof(struct vmcb_save_area)];
+
+ u8 shared_buffer[2032];
+
+ u8 reserved_1[10];
+ u16 protocol_version; /* negotiated SEV-ES/GHCB protocol version */
+ u32 ghcb_usage;
+} __packed;
+
static...
2020 Apr 28
0
[PATCH v3 23/75] x86/boot/compressed/64: Setup GHCB Based VC Exception handler
...val = sev_es_rd_ghcb_msr();
+
+ if (GHCB_INFO(val) != GHCB_SEV_INFO)
+ return false;
+
+ if (GHCB_PROTO_MAX(val) < GHCB_PROTO_OUR ||
+ GHCB_PROTO_MIN(val) > GHCB_PROTO_OUR)
+ return false;
+
+ return true;
+}
+
+static void vc_ghcb_invalidate(struct ghcb *ghcb)
+{
+ memset(ghcb->save.valid_bitmap, 0, sizeof(ghcb->save.valid_bitmap));
+}
+
+static bool vc_decoding_needed(unsigned long exit_code)
+{
+ /* Exceptions don't require to decode the instruction */
+ return !(exit_code >= SVM_EXIT_EXCP_BASE &&
+ exit_code <= SVM_EXIT_LAST_EXCP);
+}
+
+static enum es_result vc_i...
2020 Feb 11
83
[RFC PATCH 00/62] Linux as SEV-ES Guest Support
Hi,
here is the first public post of the patch-set to enable Linux to run
under SEV-ES enabled hypervisors. The code is mostly feature-complete,
but there are still a couple of bugs to fix. Nevertheless, given the
size of the patch-set, I think it is about time to ask for initial
feedback of the changes that come with it. To better understand the code
here is a quick explanation of SEV-ES first.
2020 Feb 11
83
[RFC PATCH 00/62] Linux as SEV-ES Guest Support
Hi,
here is the first public post of the patch-set to enable Linux to run
under SEV-ES enabled hypervisors. The code is mostly feature-complete,
but there are still a couple of bugs to fix. Nevertheless, given the
size of the patch-set, I think it is about time to ask for initial
feedback of the changes that come with it. To better understand the code
here is a quick explanation of SEV-ES first.
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT
2020 Jul 24
86
[PATCH v5 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a rebased version of the latest SEV-ES patches. They are now
based on latest tip/master instead of upstream Linux and include the
necessary changes.
Changes to v4 are in particular:
- Moved early IDT setup code to idt.c, because the idt_descr
and the idt_table are now static
- This required to make stack protector work early (or
2020 Jul 14
92
[PATCH v4 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the fourth version of the SEV-ES Guest Support patches. I
addressed the review comments sent to me for the previous version and
rebased the code v5.8-rc5.
The biggest change in this version is the IST handling code for the
#VC handler. I adapted the entry code for the #VC handler to the big
pile of entry code changes merged into