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From: Cedric Xing <cedric.xing@intel.com>
To: linux-kernel@vger.kernel.org, linux-sgx@vger.kernel.org,
	jarkko.sakkinen@linux.intel.com
Cc: cedric.xing@intel.com, akpm@linux-foundation.org,
	dave.hansen@intel.com, sean.j.christopherson@intel.com,
	serge.ayoun@intel.com, shay.katz-zamir@intel.com,
	haitao.huang@intel.com, kai.svahn@intel.com, kai.huang@intel.com
Subject: [RFC PATCH v4 3/3] selftests/x86/sgx: Augment SGX selftest to test vDSO API
Date: Fri, 12 Jul 2019 23:51:27 -0700
Message-ID: <657fe13cbf962d72dc1afc0e25577d8e89225702.1563000446.git.cedric.xing@intel.com> (raw)
In-Reply-To: <cover.1562813643.git.cedric.xing@intel.com>

This patch augments SGX selftest with two new tests.

The first test exercises the newly added callback interface, by marking the
whole enclave range as PROT_READ, then calling mprotect() upon #PFs to add
necessary PTE permissions per PFEC (#PF Error Code) until the enclave finishes.
This test also serves as an example to demonstrate the callback interface.

The second test single-steps through __vdso_sgx_enter_enclave() to make sure
the call stack can be unwound at every instruction within that vDSO API. Its
purpose is to validate the hand-crafted CFI directives in the assembly.

Besides the new tests, this patch also fixes minor problems in the Makefile,
such as:
  * appended "--build-id=none" to ld command line to suppress the
    ".note.gnu.build-id section discarded" linker warning.
  * removed "--remove-section=.got.plt" from objcopy command line as that
    section would never exist in statically linked (enclave) images.

Signed-off-by: Cedric Xing <cedric.xing@intel.com>
---
 tools/testing/selftests/x86/sgx/Makefile   |   6 +-
 tools/testing/selftests/x86/sgx/main.c     | 344 ++++++++++++++++++---
 tools/testing/selftests/x86/sgx/sgx_call.S |  40 ++-
 3 files changed, 343 insertions(+), 47 deletions(-)

diff --git a/tools/testing/selftests/x86/sgx/Makefile b/tools/testing/selftests/x86/sgx/Makefile
index 3af15d7c8644..31f937e220c4 100644
--- a/tools/testing/selftests/x86/sgx/Makefile
+++ b/tools/testing/selftests/x86/sgx/Makefile
@@ -14,16 +14,16 @@ TEST_CUSTOM_PROGS := $(OUTPUT)/test_sgx
 all_64: $(TEST_CUSTOM_PROGS)
 
 $(TEST_CUSTOM_PROGS): main.c sgx_call.S $(OUTPUT)/encl_piggy.o
-	$(CC) $(HOST_CFLAGS) -o $@ $^
+	$(CC) $(HOST_CFLAGS) -o $@ $^ -lunwind -ldl -Wl,--defsym,__image_base=0 -pie
 
 $(OUTPUT)/encl_piggy.o: encl_piggy.S $(OUTPUT)/encl.bin $(OUTPUT)/encl.ss
 	$(CC) $(HOST_CFLAGS) -I$(OUTPUT) -c $< -o $@
 
 $(OUTPUT)/encl.bin: $(OUTPUT)/encl.elf
-	objcopy --remove-section=.got.plt -O binary $< $@
+	objcopy -O binary $< $@
 
 $(OUTPUT)/encl.elf: encl.lds encl.c encl_bootstrap.S
-	$(CC) $(ENCL_CFLAGS) -T $^ -o $@
+	$(CC) $(ENCL_CFLAGS) -T $^ -o $@ -Wl,--build-id=none
 
 $(OUTPUT)/encl.ss: $(OUTPUT)/sgxsign signing_key.pem $(OUTPUT)/encl.bin
 	$^ $@
diff --git a/tools/testing/selftests/x86/sgx/main.c b/tools/testing/selftests/x86/sgx/main.c
index e2265f841fb0..e47d6c32623f 100644
--- a/tools/testing/selftests/x86/sgx/main.c
+++ b/tools/testing/selftests/x86/sgx/main.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 // Copyright(c) 2016-18 Intel Corporation.
 
+#define _GNU_SOURCE
 #include <elf.h>
 #include <fcntl.h>
 #include <stdbool.h>
@@ -9,16 +10,31 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <errno.h>
 #include <sys/ioctl.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
-#include <sys/time.h>
+#include <sys/auxv.h>
+#include <signal.h>
+#include <sys/ucontext.h>
+
+#define UNW_LOCAL_ONLY
+#include <libunwind.h>
+
 #include "encl_piggy.h"
 #include "defines.h"
 #include "../../../../../arch/x86/kernel/cpu/sgx/arch.h"
 #include "../../../../../arch/x86/include/uapi/asm/sgx.h"
 
-static const uint64_t MAGIC = 0x1122334455667788ULL;
+#define _Q(x)	__Q(x)
+#define __Q(x)	#x
+#define ERRLN	"Line " _Q(__LINE__)
+
+#define X86_EFLAGS_TF	(1ul << 8)
+
+extern char __image_base[];
+size_t eenter;
+static size_t vdso_base;
 
 struct vdso_symtab {
 	Elf64_Sym *elf_symtab;
@@ -26,20 +42,11 @@ struct vdso_symtab {
 	Elf64_Word *elf_hashtab;
 };
 
-static void *vdso_get_base_addr(char *envp[])
+static void vdso_init(void)
 {
-	Elf64_auxv_t *auxv;
-	int i;
-
-	for (i = 0; envp[i]; i++);
-	auxv = (Elf64_auxv_t *)&envp[i + 1];
-
-	for (i = 0; auxv[i].a_type != AT_NULL; i++) {
-		if (auxv[i].a_type == AT_SYSINFO_EHDR)
-			return (void *)auxv[i].a_un.a_val;
-	}
-
-	return NULL;
+	vdso_base = getauxval(AT_SYSINFO_EHDR);
+	if (!vdso_base)
+		exit(1);
 }
 
 static Elf64_Dyn *vdso_get_dyntab(void *addr)
@@ -66,8 +73,9 @@ static void *vdso_get_dyn(void *addr, Elf64_Dyn *dyntab, Elf64_Sxword tag)
 	return NULL;
 }
 
-static bool vdso_get_symtab(void *addr, struct vdso_symtab *symtab)
+static bool vdso_get_symtab(struct vdso_symtab *symtab)
 {
+	void *addr = (void *)vdso_base;
 	Elf64_Dyn *dyntab = vdso_get_dyntab(addr);
 
 	symtab->elf_symtab = vdso_get_dyn(addr, dyntab, DT_SYMTAB);
@@ -138,7 +146,7 @@ static bool encl_create(int dev_fd, unsigned long bin_size,
 	base = mmap(NULL, secs->size, PROT_READ | PROT_WRITE | PROT_EXEC,
 		    MAP_SHARED, dev_fd, 0);
 	if (base == MAP_FAILED) {
-		perror("mmap");
+		perror(ERRLN);
 		return false;
 	}
 
@@ -224,35 +232,292 @@ static bool encl_load(struct sgx_secs *secs, unsigned long bin_size)
 	return false;
 }
 
-void sgx_call(void *rdi, void *rsi, void *tcs,
-	      struct sgx_enclave_exception *exception,
-	      void *eenter);
+int sgx_call(void *rdi, void *rsi, long rdx, void *rcx, void *r8, void *r9,
+	     void *tcs, struct sgx_enclave_exinfo *ei, void *cb);
+
+static void show_enclave_exinfo(const struct sgx_enclave_exinfo *exinfop,
+				const char *header)
+{
+	static const char * const enclu_leaves[] = {
+		"EREPORT",
+		"EGETKEY",
+		"EENTER",
+		"ERESUME",
+		"EEXIT"
+	};
+	static const char * const exception_names[] = {
+		"#DE",
+		"#DB",
+		"NMI",
+		"#BP",
+		"#OF",
+		"#BR",
+		"#UD",
+		"#NM",
+		"#DF",
+		"CSO",
+		"#TS",
+		"#NP",
+		"#SS",
+		"#GP",
+		"#PF",
+		"Unknown",
+		"#MF",
+		"#AC",
+		"#MC",
+		"#XM",
+		"#VE",
+		"Unknown",
+		"Unknown",
+		"Unknown",
+		"Unknown",
+		"Unknown",
+		"Unknown",
+		"Unknown",
+		"Unknown",
+		"Unknown",
+		"Unknown",
+		"Unknown"
+	};
+
+	printf("%s: leaf:%s(%d)", header,
+		enclu_leaves[exinfop->leaf], exinfop->leaf);
+	if (exinfop->leaf != 4)
+		printf(" trap:%s(%d) ec:%d addr:0x%llx\n",
+			exception_names[exinfop->trapnr], exinfop->trapnr,
+			exinfop->error_code, exinfop->address);
+	else
+		printf("\n");
+}
+
+static const uint64_t MAGIC = 0x1122334455667788ULL;
+
+/*
+ * test1() tests vDSO API (i.e. __vdso_sgx_enter_enclave) without supplying a
+ * callback function.  It loads a very simple enclave that copies a 64-bit
+ * value from source buffer to the destination. Then it invokes the enclave
+ * twice. At the first time it provides all valid inputs and verifies the
+ * output buffer contains the same value as the source buffer. At the second
+ * time, it provides NULL as the TCS address to exercise the exception flow.
+ */
+static void test1(struct sgx_secs *secs)
+{
+	uint64_t result = 0;
+	struct sgx_enclave_exinfo exinfo;
+
+	printf("[1] Entering the enclave without callback.\n");
+
+	printf("Input: 0x%lx\n Expect: Same as input\n", MAGIC);
+	sgx_call((void *)&MAGIC, &result, 0, NULL, NULL, NULL,
+		 (void *)secs->base, &exinfo, NULL);
+	show_enclave_exinfo(&exinfo, " Exit");
+	if (result != MAGIC) {
+		fprintf(stderr, "0x%lx != 0x%lx\n", result, MAGIC);
+		exit(1);
+	}
+	printf(" Output: 0x%lx\n", result);
+
+	printf("Input: Null TCS\n Expect: #PF at EENTER\n");
+	sgx_call((void *)&MAGIC, &result, 0, NULL, NULL, NULL,
+		 NULL, &exinfo, NULL);
+	show_enclave_exinfo(&exinfo, " Exit");
+	if (exinfo.leaf != 2 /*EENTER*/ || exinfo.trapnr != 14 /*#PF*/)
+		exit(1);
+}
+
+static int test2_callback(long rdi, long rsi, long rdx,
+			  struct sgx_enclave_exinfo *ei, long r8, long r9,
+			  void *tcs, long ursp)
+{
+	show_enclave_exinfo(ei, "  callback");
+
+	switch (ei->leaf) {
+	case 4:
+		return 0;
+	case 3:
+	case 2:
+		switch (ei->trapnr) {
+		case 1:	/*#DB*/
+			break;
+		case 14:/*#PF*/
+			if ((ei->error_code & 1) == 0) {
+				fprintf(stderr, ERRLN
+					": Unexpected #PF error code\n");
+				exit(1);
+			}
+			if (mprotect((void *)(ei->address & -0x1000), 0x1000,
+				     ((ei->error_code & 2) ? PROT_WRITE : 0) |
+				     ((ei->error_code & 0x10) ? PROT_EXEC : 0) |
+				     PROT_READ)) {
+				perror(ERRLN);
+				exit(1);
+			}
+			break;
+		default:
+			fprintf(stderr, ERRLN ": Unexpected exception\n");
+			exit(1);
+		}
+		return ei->leaf == 2 ? -EAGAIN : ei->leaf;
+	}
+	return -EINVAL;
+}
+
+/*
+ * test2() tests the exception/callback mechanism of the vDSO API with a
+ * callback function. Firstly, it supplies all valid inputs along with a
+ * callback function, and verifies that exinfo contains the expected values.
+ * Secondly, it marks the whole enclave virtual range as read-only, and let the
+ * callback fixes the PTE permissions by calling mprotect() along the way. The
+ * callback in this test also serves an example to show how to use the callback
+ * interface.
+ */
+static void test2(struct sgx_secs *secs)
+{
+	uint64_t result = 0;
+	struct sgx_enclave_exinfo exinfo;
+
+	printf("[2] Entering the enclave with callback.\n");
+
+	printf("Input: 0x%lx\n Expect: Same as input\n", MAGIC);
+	sgx_call((void *)&MAGIC, &result, 0, NULL, NULL, NULL,
+		 (void *)secs->base, &exinfo, test2_callback);
+	if (result != MAGIC) {
+		fprintf(stderr, "0x%lx != 0x%lx\n", result, MAGIC);
+		exit(1);
+	}
+	printf(" Output: 0x%lx\n", result);
+
+	printf("Input: Read-only enclave (0x%lx-0x%lx)\n"
+	       " Expect: #PFs to be fixed by callback\n",
+	       secs->base, secs->base + (encl_bin_end - encl_bin) - 1);
+	if (mprotect((void *)secs->base, encl_bin_end - encl_bin, PROT_READ)) {
+		perror(ERRLN);
+		exit(1);
+	}
+	while (sgx_call((void *)&MAGIC, &result, 0, NULL, NULL, NULL,
+			(void *)secs->base, &exinfo, test2_callback) == -EAGAIN)
+		;
+	show_enclave_exinfo(&exinfo, " Exit");
+	if (exinfo.leaf != 4 /*EEXIT*/)
+		exit(1);
+}
+
+static void *test3_caller;
+static struct test3_proc_context {
+	unw_word_t	ip, bx, sp, bp, r12, r13, r14, r15;
+} test3_ctx;
 
-int main(int argc, char *argv[], char *envp[])
+static unw_word_t test3_getcontext(unw_cursor_t *cursor,
+				   struct test3_proc_context *ctxp)
+{
+	unw_get_reg(cursor, UNW_REG_IP, &ctxp->ip);
+	unw_get_reg(cursor, UNW_REG_SP, &ctxp->sp);
+	unw_get_reg(cursor, UNW_X86_64_RBX, &ctxp->bx);
+	unw_get_reg(cursor, UNW_X86_64_RBP, &ctxp->bp);
+	unw_get_reg(cursor, UNW_X86_64_R12, &ctxp->r12);
+	unw_get_reg(cursor, UNW_X86_64_R13, &ctxp->r13);
+	unw_get_reg(cursor, UNW_X86_64_R14, &ctxp->r14);
+	unw_get_reg(cursor, UNW_X86_64_R15, &ctxp->r15);
+	return ctxp->ip;
+}
+
+static void test3_sigtrap(int sig, siginfo_t *info, ucontext_t *ctxp)
+{
+	static int in_vdso_eenter;
+
+	unw_cursor_t cursor;
+	unw_context_t uc;
+	struct test3_proc_context pc;
+
+	if (ctxp->uc_mcontext.gregs[REG_RIP] == eenter) {
+		in_vdso_eenter = 1;
+		printf("  trace started at ip:%llx (vdso:0x%llx)\n",
+			ctxp->uc_mcontext.gregs[REG_RIP],
+			ctxp->uc_mcontext.gregs[REG_RIP] - vdso_base);
+	}
+
+	if (!in_vdso_eenter)
+		return;
+
+	if ((void *)ctxp->uc_mcontext.gregs[REG_RIP] == test3_caller) {
+		in_vdso_eenter = 0;
+		ctxp->uc_mcontext.gregs[REG_EFL] &= ~X86_EFLAGS_TF;
+		printf("  trace ended successfully at ip:%llx (executable:0x%llx)\n",
+			ctxp->uc_mcontext.gregs[REG_RIP],
+			ctxp->uc_mcontext.gregs[REG_RIP] -
+				(size_t)__image_base);
+		return;
+	}
+
+	unw_getcontext(&uc);
+	unw_init_local(&cursor, &uc);
+	while (unw_step(&cursor) > 0 &&
+	       test3_getcontext(&cursor, &pc) != test3_ctx.ip)
+		;
+
+	if (memcmp(&pc, &test3_ctx, sizeof(pc))) {
+		fprintf(stderr, ERRLN ": Error unwinding\n");
+		exit(1);
+	}
+}
+
+__attribute__((noinline))
+static void test3_test_unwind(void (*f)(struct sgx_secs *),
+			      struct sgx_secs *secs)
+{
+	test3_caller = __builtin_return_address(0);
+	__asm__ ("pushfq; orl %0, (%%rsp); popfq" : : "i"(X86_EFLAGS_TF));
+	f(secs);
+}
+
+/*
+ * test3() single-steps through the vDSO API to test out CFI directives inside
+ * the API.
+ */
+static void test3(struct sgx_secs *secs)
+{
+	unw_cursor_t cursor;
+	unw_context_t uc;
+	struct sigaction sa = {
+		.sa_sigaction = (void (*)(int, siginfo_t*, void*))test3_sigtrap,
+		.sa_flags = SA_SIGINFO,
+	};
+
+	unw_getcontext(&uc);
+	unw_init_local(&cursor, &uc);
+	if (unw_step(&cursor) > 0)
+		test3_getcontext(&cursor, &test3_ctx);
+	else {
+		fprintf(stderr, ERRLN ": error initializing unwind context\n");
+		exit(1);
+	}
+
+	if (sigaction(SIGTRAP, &sa, NULL) < 0) {
+		perror(ERRLN);
+		exit(1);
+	}
+
+	test3_test_unwind(test1, secs);
+	test3_test_unwind(test2, secs);
+}
+
+int main(void)
 {
 	unsigned long bin_size = encl_bin_end - encl_bin;
 	unsigned long ss_size = encl_ss_end - encl_ss;
-	struct sgx_enclave_exception exception;
 	Elf64_Sym *eenter_sym;
 	struct vdso_symtab symtab;
 	struct sgx_secs secs;
-	uint64_t result = 0;
-	void *eenter;
-	void *addr;
-
-	memset(&exception, 0, sizeof(exception));
 
-	addr = vdso_get_base_addr(envp);
-	if (!addr)
-		exit(1);
+	vdso_init();
 
-	if (!vdso_get_symtab(addr, &symtab))
+	if (!vdso_get_symtab(&symtab))
 		exit(1);
 
 	eenter_sym = vdso_symtab_get(&symtab, "__vdso_sgx_enter_enclave");
 	if (!eenter_sym)
 		exit(1);
-	eenter = addr + eenter_sym->st_value;
+	eenter = vdso_base + eenter_sym->st_value;
 
 	printf("Binary size %lu (0x%lx), SIGSTRUCT size %lu\n", bin_size,
 	       bin_size, ss_size);
@@ -266,14 +531,11 @@ int main(int argc, char *argv[], char *envp[])
 	if (!encl_load(&secs, bin_size))
 		exit(1);
 
-	printf("Input: 0x%lx\n", MAGIC);
-	sgx_call((void *)&MAGIC, &result, (void *)secs.base, &exception,
-		 eenter);
-	if (result != MAGIC) {
-		fprintf(stderr, "0x%lx != 0x%lx\n", result, MAGIC);
-		exit(1);
-	}
+	printf("--- Functional Tests ---\n");
+	test1(&secs);
+	test2(&secs);
 
-	printf("Output: 0x%lx\n", result);
-	exit(0);
+	printf("--- Unwind Tests ---\n");
+	test3(&secs);
+	return 0;
 }
diff --git a/tools/testing/selftests/x86/sgx/sgx_call.S b/tools/testing/selftests/x86/sgx/sgx_call.S
index 14bd0a044199..ca2c0c947758 100644
--- a/tools/testing/selftests/x86/sgx/sgx_call.S
+++ b/tools/testing/selftests/x86/sgx/sgx_call.S
@@ -7,9 +7,43 @@
 
 	.global sgx_call
 sgx_call:
+	.cfi_startproc
+	push	%r15
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%r15, 0
+	push	%r14
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%r14, 0
+	push	%r13
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%r13, 0
+	push	%r12
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%r12, 0
 	push	%rbx
-	mov	$0x02, %rax
-	mov	%rdx, %rbx
-	call	*%r8
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%rbx, 0
+	push	$0
+	.cfi_adjust_cfa_offset	8
+	push	0x48(%rsp)
+	.cfi_adjust_cfa_offset	8
+	push	0x48(%rsp)
+	.cfi_adjust_cfa_offset	8
+	push	0x48(%rsp)
+	.cfi_adjust_cfa_offset	8
+	mov	$2, %eax
+	call	*eenter(%rip)
+	add	$0x20, %rsp
+	.cfi_adjust_cfa_offset	-0x20
 	pop	%rbx
+	.cfi_adjust_cfa_offset	-8
+	pop	%r12
+	.cfi_adjust_cfa_offset	-8
+	pop	%r13
+	.cfi_adjust_cfa_offset	-8
+	pop	%r14
+	.cfi_adjust_cfa_offset	-8
+	pop	%r15
+	.cfi_adjust_cfa_offset	-8
 	ret
+	.cfi_endproc
-- 
2.17.1


  parent reply index

Thread overview: 318+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-17 10:39 [PATCH v20 00/28] Intel SGX1 support Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 01/28] x86/cpufeatures: Add Intel-defined SGX feature bit Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 02/28] x86/cpufeatures: Add SGX sub-features (as Linux-defined bits) Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 03/28] x86/msr: Add IA32_FEATURE_CONTROL.SGX_ENABLE definition Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 04/28] x86/cpufeatures: Add Intel-defined SGX_LC feature bit Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 05/28] x86/msr: Add SGX Launch Control MSR definitions Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 06/28] x86/mm: x86/sgx: Add new 'PF_SGX' page fault error code bit Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 07/28] x86/mm: x86/sgx: Signal SIGSEGV for userspace #PFs w/ PF_SGX Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 08/28] x86/cpu/intel: Detect SGX support and update caps appropriately Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 09/28] x86/sgx: Add ENCLS architectural error codes Jarkko Sakkinen
2019-04-22 21:35   ` Sean Christopherson
2019-04-17 10:39 ` [PATCH v20 10/28] x86/sgx: Add SGX1 and SGX2 architectural data structures Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 11/28] x86/sgx: Add wrappers for ENCLS leaf functions Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 12/28] x86/sgx: Enumerate and track EPC sections Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 13/28] x86/sgx: Add functions to allocate and free EPC pages Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 14/28] x86/sgx: Add sgx_einit() for initializing enclaves Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 15/28] x86/sgx: Add the Linux SGX Enclave Driver Jarkko Sakkinen
2019-04-22 21:58   ` Sean Christopherson
2019-04-23 23:29     ` Jethro Beekman
2019-04-24  0:26       ` Sean Christopherson
2019-04-24  1:04         ` Jethro Beekman
2019-04-29 19:08           ` Sean Christopherson
2019-06-04 20:12         ` Sean Christopherson
2019-06-05 14:29           ` Jarkko Sakkinen
2019-06-05 14:52             ` Sean Christopherson
2019-06-05 21:25               ` Dr. Greg
2019-06-05 22:20                 ` Sean Christopherson
2019-06-06 15:32               ` Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 16/28] x86/sgx: Add provisioning Jarkko Sakkinen
2019-04-19  3:06   ` Huang, Kai
2019-04-23 14:33     ` Jarkko Sakkinen
2019-04-24  1:34   ` Jethro Beekman
2019-05-02  8:27     ` Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 17/28] x86/sgx: Add swapping code to the core and SGX driver Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 18/28] x86/sgx: ptrace() support for the " Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 19/28] x86/vdso: Add support for exception fixup in vDSO functions Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 20/28] x86/fault: Add helper function to sanitize error code Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 21/28] x86/fault: Attempt to fixup unhandled #PF in vDSO before signaling Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 22/28] x86/traps: Attempt to fixup exceptions " Jarkko Sakkinen
2019-06-25 15:43   ` Jarkko Sakkinen
2019-06-27 20:32     ` Xing, Cedric
2019-07-11 15:54       ` Sean Christopherson
2019-07-11 22:12         ` Xing, Cedric
2019-07-11 15:56     ` Sean Christopherson
2019-07-11 17:52       ` Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 23/28] x86/vdso: Add __vdso_sgx_enter_enclave() to wrap SGX enclave transitions Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 24/28] selftests/x86: Add a selftest for SGX Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 25/28] x86/sgx: Update MAINTAINERS Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 26/28] docs: x86/sgx: Add Architecture documentation Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 27/28] docs: x86/sgx: Document kernel internals Jarkko Sakkinen
2019-04-17 10:39 ` [PATCH v20 28/28] docs: x86/sgx: Document the enclave API Jarkko Sakkinen
2019-04-18 17:10 ` [PATCH v20 00/28] Intel SGX1 support Dr. Greg
2019-04-18 17:24   ` Dave Hansen
2019-04-19 16:24     ` Dr. Greg
2019-04-19 16:39       ` Dave Hansen
2019-04-18 18:01   ` Dave Hansen
2019-04-19 14:17     ` Dr. Greg
2019-04-19 14:25       ` Dave Hansen
2019-04-19 15:27       ` Andy Lutomirski
2019-04-19 19:38         ` Jethro Beekman
2019-04-19 20:39           ` Thomas Gleixner
2019-04-19 20:46             ` Jethro Beekman
2019-04-19 20:50               ` Thomas Gleixner
2019-04-19 20:54                 ` Jethro Beekman
2019-04-19 21:15                   ` Andy Lutomirski
2019-04-19 21:19                     ` Jethro Beekman
2019-04-19 21:31                       ` Andy Lutomirski
2019-04-19 21:35                         ` Jethro Beekman
2019-04-19 21:38                           ` Thomas Gleixner
2019-04-19 21:56                             ` Jethro Beekman
2019-04-20  5:42                               ` Thomas Gleixner
2019-04-20 16:02                                 ` Dr. Greg
2019-04-22 15:01                                   ` Sean Christopherson
2019-04-22 16:24                                     ` Dr. Greg
2019-04-22 16:48                                       ` Sean Christopherson
2019-04-22 16:55                                         ` Linus Torvalds
2019-04-22 17:17                                           ` Sean Christopherson
2019-04-23  9:11                                             ` Dr. Greg
2019-04-22 16:26                               ` Andy Lutomirski
2019-04-23 21:15                                 ` Jethro Beekman
2019-05-10 17:23                                 ` Xing, Cedric
2019-05-10 17:37                                   ` Jethro Beekman
2019-05-10 17:54                                     ` Dave Hansen
2019-05-10 18:04                                       ` Jethro Beekman
2019-05-10 18:56                                         ` Xing, Cedric
2019-05-10 19:04                                           ` Jethro Beekman
2019-05-10 19:22                                             ` Andy Lutomirski
2019-05-11  1:06                                               ` Xing, Cedric
2019-05-14 15:08                                                 ` Andy Lutomirski
2019-05-15  8:31                                                   ` Jarkko Sakkinen
     [not found]                                               ` <20190513102926.GD8743@linux.intel.com>
2019-05-14 10:43                                                 ` Jarkko Sakkinen
2019-05-14 15:13                                                   ` Andy Lutomirski
2019-05-14 20:45                                                     ` Sean Christopherson
2019-05-14 21:27                                                       ` Andy Lutomirski
2019-05-14 22:28                                                         ` Xing, Cedric
2019-05-15  1:30                                                         ` Sean Christopherson
2019-05-15 18:27                                                           ` SGX vs LSM (Re: [PATCH v20 00/28] Intel SGX1 support) Andy Lutomirski
2019-05-15 19:58                                                             ` James Morris
2019-05-15 20:35                                                               ` Andy Lutomirski
2019-05-15 22:46                                                                 ` James Morris
2019-05-15 23:13                                                                   ` Andy Lutomirski
2019-05-16  3:03                                                                     ` Xing, Cedric
2019-05-16  4:40                                                                       ` Andy Lutomirski
2019-05-16 22:23                                                                         ` Xing, Cedric
2019-05-17  0:35                                                                           ` Andy Lutomirski
2019-05-17  1:06                                                                             ` Xing, Cedric
2019-05-17  1:21                                                                               ` Andy Lutomirski
2019-05-17 16:05                                                                             ` Sean Christopherson
2019-05-17 13:53                                                                           ` Stephen Smalley
2019-05-17 15:09                                                                             ` Sean Christopherson
2019-05-17 16:20                                                                               ` Stephen Smalley
2019-05-17 16:24                                                                                 ` Andy Lutomirski
2019-05-17 16:37                                                                                 ` Stephen Smalley
2019-05-17 17:12                                                                                   ` Andy Lutomirski
2019-05-17 18:05                                                                                     ` Stephen Smalley
2019-05-17 19:20                                                                                       ` Stephen Smalley
2019-05-17 19:28                                                                                       ` Sean Christopherson
2019-05-17 20:09                                                                                         ` Stephen Smalley
2019-05-17 20:14                                                                                           ` Andy Lutomirski
2019-05-17 20:34                                                                                             ` Stephen Smalley
2019-05-17 21:36                                                                                           ` Sean Christopherson
2019-05-17 17:29                                                                                   ` Sean Christopherson
2019-05-17 17:42                                                                                     ` Stephen Smalley
2019-05-17 17:50                                                                                       ` Sean Christopherson
2019-05-17 18:16                                                                                         ` Stephen Smalley
2019-05-17 17:43                                                                                     ` Andy Lutomirski
2019-05-17 17:55                                                                                       ` Sean Christopherson
2019-05-17 18:04                                                                                         ` Linus Torvalds
2019-05-17 18:21                                                                                           ` Sean Christopherson
2019-05-17 18:33                                                                                             ` Linus Torvalds
2019-05-17 18:52                                                                                               ` Sean Christopherson
2019-05-17 18:53                                                                                             ` Andy Lutomirski
2019-05-16  7:24                                                                     ` James Morris
2019-05-16 21:00                                                                       ` Andy Lutomirski
2019-05-20  9:38                                                                       ` Dr. Greg
2019-05-15 21:38                                                             ` Sean Christopherson
2019-05-16  1:19                                                               ` Haitao Huang
2019-05-16  5:16                                                             ` Jarkko Sakkinen
2019-05-16 21:02                                                               ` Andy Lutomirski
2019-05-16 22:45                                                                 ` Sean Christopherson
2019-05-16 23:29                                                                   ` Xing, Cedric
2019-05-20 11:29                                                                   ` Jarkko Sakkinen
2019-05-20 11:33                                                                 ` Jarkko Sakkinen
2019-05-17  0:03                                                             ` Sean Christopherson
2019-05-17  0:26                                                               ` Andy Lutomirski
2019-05-17 15:41                                                                 ` Sean Christopherson
2019-05-20 11:42                                                                   ` Jarkko Sakkinen
2019-05-20 11:41                                                                 ` Jarkko Sakkinen
2019-05-21 15:19                                                                   ` Jarkko Sakkinen
2019-05-21 15:24                                                                     ` Jethro Beekman
2019-05-22 13:10                                                                       ` Jarkko Sakkinen
2019-05-21 15:51                                                                     ` Sean Christopherson
2019-05-22 13:20                                                                       ` Jarkko Sakkinen
2019-05-22 13:22                                                                         ` Jarkko Sakkinen
2019-05-22 13:56                                                                           ` Stephen Smalley
2019-05-22 15:38                                                                             ` Sean Christopherson
2019-05-22 22:42                                                                               ` Andy Lutomirski
2019-05-23  2:35                                                                                 ` Sean Christopherson
2019-05-23 10:26                                                                                   ` Jarkko Sakkinen
2019-05-23 14:17                                                                                     ` Sean Christopherson
2019-05-23 15:38                                                                                       ` Andy Lutomirski
2019-05-23 23:40                                                                                         ` Sean Christopherson
2019-05-24  1:17                                                                                           ` Andy Lutomirski
2019-05-24  7:24                                                                                             ` Xing, Cedric
2019-05-24 15:41                                                                                               ` Stephen Smalley
2019-05-24 16:57                                                                                                 ` Xing, Cedric
2019-05-24 17:42                                                                                                 ` Sean Christopherson
2019-05-24 17:54                                                                                                   ` Andy Lutomirski
2019-05-24 17:56                                                                                                     ` Sean Christopherson
2019-05-24 17:54                                                                                                   ` Sean Christopherson
2019-05-24 18:34                                                                                                     ` Xing, Cedric
2019-05-24 19:13                                                                                                       ` Sean Christopherson
2019-05-24 19:30                                                                                                         ` Andy Lutomirski
2019-05-24 20:42                                                                                                         ` Xing, Cedric
2019-05-24 21:11                                                                                                           ` Sean Christopherson
2019-05-24 19:37                                                                                                       ` Andy Lutomirski
2019-05-24 20:03                                                                                                         ` Sean Christopherson
2019-05-24 20:58                                                                                                           ` Xing, Cedric
2019-05-24 21:27                                                                                                           ` Andy Lutomirski
2019-05-24 22:41                                                                                                             ` Sean Christopherson
2019-05-24 23:42                                                                                                               ` Andy Lutomirski
2019-05-25 22:40                                                                                                                 ` Xing, Cedric
2019-05-26  0:57                                                                                                                   ` Andy Lutomirski
2019-05-26  6:09                                                                                                                     ` Xing, Cedric
2019-05-28 20:24                                                                                                                       ` Sean Christopherson
2019-05-28 20:48                                                                                                                         ` Andy Lutomirski
2019-05-28 21:41                                                                                                                           ` Sean Christopherson
2019-05-30  5:38                                                                                                                             ` Xing, Cedric
2019-05-30 17:21                                                                                                                               ` Sean Christopherson
2019-05-29 14:08                                                                                                                         ` Stephen Smalley
2019-05-30  6:12                                                                                                                           ` Xing, Cedric
2019-05-30 14:22                                                                                                                             ` Stephen Smalley
2019-05-30 14:31                                                                                                                               ` Andy Lutomirski
2019-05-30 15:04                                                                                                                                 ` Stephen Smalley
2019-05-30 16:14                                                                                                                                   ` Andy Lutomirski
2019-05-30 18:01                                                                                                                                     ` Sean Christopherson
2019-05-30 19:20                                                                                                                                       ` Andy Lutomirski
2019-05-30 21:16                                                                                                                                         ` Sean Christopherson
2019-05-30 21:23                                                                                                                                           ` Andy Lutomirski
2019-05-30 21:36                                                                                                                                             ` Sean Christopherson
2019-06-03  9:12                                                                                                                                               ` Dr. Greg
2019-06-03 21:08                                                                                                                                               ` Jarkko Sakkinen
2019-05-30 21:48                                                                                                                                         ` Xing, Cedric
2019-05-30 22:24                                                                                                                                           ` Sean Christopherson
2019-06-03 21:05                                                                                                                                       ` Jarkko Sakkinen
2019-06-03 20:54                                                                                                                                     ` Jarkko Sakkinen
2019-06-03 21:23                                                                                                                                       ` Sean Christopherson
2019-06-04 11:39                                                                                                                                         ` Jarkko Sakkinen
2019-06-03 21:37                                                                                                                                       ` Andy Lutomirski
2019-06-03 20:47                                                                                                                                   ` Jarkko Sakkinen
2019-06-03 20:43                                                                                                                                 ` Jarkko Sakkinen
2019-05-25 17:31                                                                                                           ` Dr. Greg
2019-05-24 16:43                                                                                               ` Andy Lutomirski
2019-05-24 17:07                                                                                                 ` Sean Christopherson
2019-05-24 17:51                                                                                                   ` Andy Lutomirski
2019-05-24 14:44                                                                                         ` Stephen Smalley
2019-05-27 13:48                                                                                         ` Jarkko Sakkinen
2019-05-23 19:58                                                                                       ` Sean Christopherson
2019-05-27 13:34                                                                                       ` Jarkko Sakkinen
2019-05-27 13:38                                                                                         ` Jarkko Sakkinen
2019-05-23  8:10                                                                                 ` Jarkko Sakkinen
2019-05-23  8:23                                                                                   ` Jarkko Sakkinen
2019-05-20 11:36                                                               ` Jarkko Sakkinen
2019-05-15 10:35                                                       ` [PATCH v20 00/28] Intel SGX1 support Jarkko Sakkinen
2019-05-15 11:00                                                         ` Jarkko Sakkinen
2019-05-15 14:27                                                           ` Andy Lutomirski
2019-05-16  5:07                                                             ` Jarkko Sakkinen
2019-05-16  6:51                                                               ` Jarkko Sakkinen
2019-05-16  7:02                                                                 ` Jarkko Sakkinen
2019-05-15 13:21                                                         ` Sean Christopherson
2019-05-16  5:01                                                           ` Jarkko Sakkinen
2019-05-15  8:49                                                     ` Jarkko Sakkinen
2019-05-15  9:58                                                       ` Jarkko Sakkinen
2019-05-14 14:33                                               ` Haitao Huang
2019-05-14 15:17                                                 ` Andy Lutomirski
2019-05-14 15:30                                                   ` Haitao Huang
2019-05-14 20:45                                                     ` Andy Lutomirski
2019-05-14 21:08                                                       ` Haitao Huang
2019-05-14 21:58                                                       ` Xing, Cedric
2019-05-15  5:15                                                         ` Haitao Huang
2019-05-10 18:44                                       ` Xing, Cedric
2019-04-19 21:34                       ` Thomas Gleixner
2019-04-19 21:05               ` Jethro Beekman
2019-04-18 18:07   ` Andy Lutomirski
2019-04-22 20:42 ` [RFC PATCH v1 0/3] An alternative __vdso_sgx_enter_enclave() to allow enclave/host parameter passing using untrusted stack Cedric Xing
2019-04-22 22:05   ` Sean Christopherson
2019-04-23  0:37   ` Cedric Xing
2019-04-24  6:26   ` [RFC PATCH v2 " Cedric Xing
2019-07-10 11:17     ` Jarkko Sakkinen
2019-07-10 18:08       ` Xing, Cedric
2019-07-10 22:46         ` Jarkko Sakkinen
2019-07-10 22:54           ` Xing, Cedric
2019-07-11  9:36             ` Jarkko Sakkinen
2019-07-11 19:49               ` Xing, Cedric
2019-07-10 23:15           ` Jarkko Sakkinen
2019-07-10 23:37             ` Xing, Cedric
2019-07-11  9:38               ` Jarkko Sakkinen
2019-07-11 15:50                 ` Sean Christopherson
2019-07-11 17:59                   ` Jarkko Sakkinen
2019-07-11 19:51                 ` Xing, Cedric
2019-07-11  4:21     ` [RFC PATCH v3 0/3] x86/sgx: Amend vDSO API to allow enclave/host parameter passing on " Cedric Xing
2019-07-12  3:28       ` Jarkko Sakkinen
2019-07-13  6:51       ` [RFC PATCH v4 " Cedric Xing
2019-07-13  6:51       ` [RFC PATCH v4 1/3] selftests/x86/sgx: Fix Makefile for SGX selftest Cedric Xing
2019-07-13 15:10         ` Jarkko Sakkinen
2019-07-13 15:15           ` Jarkko Sakkinen
2019-07-13 17:29             ` Xing, Cedric
2019-07-14 14:53               ` Jarkko Sakkinen
2019-07-13  6:51       ` [RFC PATCH v4 2/3] x86/vdso: Modify __vdso_sgx_enter_enclave() to allow parameter passing on untrusted stack Cedric Xing
2019-07-13 15:04         ` Jarkko Sakkinen
2019-07-13 15:06           ` Jarkko Sakkinen
2019-07-13  6:51       ` Cedric Xing [this message]
2019-07-13 15:21         ` [RFC PATCH v4 3/3] selftests/x86/sgx: Augment SGX selftest to test vDSO API Jarkko Sakkinen
2019-07-13 17:20           ` Xing, Cedric
2019-07-14 14:40             ` Jarkko Sakkinen
2019-07-14 14:47             ` Jarkko Sakkinen
2019-07-17 21:57               ` Xing, Cedric
2019-07-11  4:21     ` [RFC PATCH v3 1/3] selftests/x86: Fixed Makefile for SGX selftest Cedric Xing
2019-07-11  4:21     ` [RFC PATCH v3 2/3] x86/vdso: Modify __vdso_sgx_enter_enclave() to allow parameter passing on untrusted stack Cedric Xing
2019-07-11  9:50       ` Jarkko Sakkinen
2019-07-11  9:53       ` Jarkko Sakkinen
2019-07-11 15:42         ` Sean Christopherson
2019-07-11 17:55           ` Jarkko Sakkinen
2019-07-11 17:58             ` Sean Christopherson
2019-07-12  3:16               ` Jarkko Sakkinen
2019-07-13  7:00                 ` Xing, Cedric
2019-07-11  4:21     ` [RFC PATCH v3 3/3] selftests/x86: Augment SGX selftest to test new __vdso_sgx_enter_enclave() and its callback interface Cedric Xing
2019-04-24  6:26   ` [RFC PATCH v2 1/3] selftests/x86: Fixed Makefile for SGX selftest Cedric Xing
2019-07-12  3:19     ` Jarkko Sakkinen
2019-07-13  6:58       ` Xing, Cedric
2019-04-24  6:26   ` [RFC PATCH v2 2/3] x86/vdso: Modify __vdso_sgx_enter_enclave() to allow parameter passing on untrusted stack Cedric Xing
2019-04-24 19:04     ` Sean Christopherson
2019-04-25 23:31       ` Xing, Cedric
2019-04-26 21:00         ` Sean Christopherson
2019-05-02  8:28           ` Jarkko Sakkinen
2019-04-24  6:26   ` [RFC PATCH v2 3/3] selftests/x86: Augment SGX selftest to test new __vdso_sgx_enter_enclave() and its callback interface Cedric Xing
2019-07-12  3:25     ` Jarkko Sakkinen
2019-07-13  7:03       ` Xing, Cedric
2019-04-22 20:42 ` [RFC PATCH v1 1/3] selftests/x86: Fixed Makefile for SGX selftest Cedric Xing
2019-04-23  0:37   ` Cedric Xing
2019-04-22 20:42 ` [RFC PATCH v1 2/3] x86/vdso: Modify __vdso_sgx_enter_enclave() to allow parameter passing on untrusted stack Cedric Xing
2019-04-22 22:26   ` Sean Christopherson
2019-04-23  0:37   ` Cedric Xing
2019-04-23  1:25   ` Andy Lutomirski
2019-04-24 17:56     ` Xing, Cedric
2019-04-23 19:26   ` Sean Christopherson
2019-04-23 19:44     ` Andy Lutomirski
2019-04-22 20:42 ` [RFC PATCH v1 3/3] selftests/x86: Augment SGX selftest to test new __vdso_sgx_enter_enclave() and its callback interface Cedric Xing
2019-04-23  0:37   ` Cedric Xing
2019-04-23  1:29   ` Andy Lutomirski
2019-04-23  1:48     ` Sean Christopherson
2019-04-23 18:59     ` Sean Christopherson
2019-04-23 19:07       ` Andy Lutomirski
2019-04-23 20:11         ` Sean Christopherson
2019-04-23 11:56 ` [PATCH v20 00/28] Intel SGX1 support Jarkko Sakkinen
2019-04-23 16:52   ` Andy Lutomirski
2019-04-24 12:17     ` Jarkko Sakkinen
2019-05-08 13:45       ` Jarkko Sakkinen

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