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[Qemu-devel] [PATCH v3 07/13] tests: acpi: add acpi_find_rsdp_address_ue
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [PATCH v3 07/13] tests: acpi: add acpi_find_rsdp_address_uefi() helper |
Date: |
Thu, 25 Apr 2019 07:34:43 +0200 |
introduce UEFI specific counterpart to acpi_find_rsdp_address()
that will help to find RSDP address when [OA]VMF is used as
firmware. It requires guest firmware or other guest app to place
1Mb aligned UefiTestSupport structure (defined in this patch)
in RAM with UefiTestSupport::signature_guid set to
AB87A6B1-2034-BDA0-71BD-375007757785
Signed-off-by: Igor Mammedov <address@hidden>
Reviewed-by: Laszlo Ersek <address@hidden>
---
v3:
* fix checkpatch error (separate opening brace from values in
AcpiTestSupportGuid initializer)
v2:
* Laszlo Ersek <address@hidden>
- s/uefi_find_rsdp_addr/acpi_find_rsdp_address_uefi/
- use GUID_SIZE instead of opencodding size
- make AcpiTestSupportGuid const
- s/TCI/TCG/
---
tests/acpi-utils.h | 2 ++
tests/acpi-utils.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 46 insertions(+)
diff --git a/tests/acpi-utils.h b/tests/acpi-utils.h
index 75f78f2..dcfa721 100644
--- a/tests/acpi-utils.h
+++ b/tests/acpi-utils.h
@@ -46,6 +46,8 @@ typedef struct {
uint8_t acpi_calc_checksum(const uint8_t *data, int len);
uint32_t acpi_find_rsdp_address(QTestState *qts);
+uint64_t acpi_find_rsdp_address_uefi(QTestState *qts, uint64_t start,
+ uint64_t size);
void acpi_fetch_rsdp_table(QTestState *qts, uint64_t addr, uint8_t
*rsdp_table);
void acpi_fetch_table(QTestState *qts, uint8_t **aml, uint32_t *aml_len,
const uint8_t *addr_ptr, const char *sig,
diff --git a/tests/acpi-utils.c b/tests/acpi-utils.c
index 2dd4fe0..197af82 100644
--- a/tests/acpi-utils.c
+++ b/tests/acpi-utils.c
@@ -99,3 +99,47 @@ void acpi_fetch_table(QTestState *qts, uint8_t **aml,
uint32_t *aml_len,
g_assert(!acpi_calc_checksum(*aml, *aml_len));
}
}
+
+#define GUID_SIZE 16
+static const uint8_t AcpiTestSupportGuid[GUID_SIZE] = {
+ 0xb1, 0xa6, 0x87, 0xab,
+ 0x34, 0x20,
+ 0xa0, 0xbd,
+ 0x71, 0xbd, 0x37, 0x50, 0x07, 0x75, 0x77, 0x85 };
+
+typedef struct {
+ uint8_t signature_guid[GUID_SIZE];
+ uint64_t rsdp10;
+ uint64_t rsdp20;
+} __attribute__((packed)) UefiTestSupport;
+
+/* Wait at most 600 seconds (test is slow with TCG and --enable-debug) */
+#define TEST_DELAY (1 * G_USEC_PER_SEC / 10)
+#define TEST_CYCLES MAX((600 * G_USEC_PER_SEC / TEST_DELAY), 1)
+#define MB 0x100000ULL
+uint64_t acpi_find_rsdp_address_uefi(QTestState *qts, uint64_t start,
+ uint64_t size)
+{
+ int i, j;
+ uint8_t data[GUID_SIZE];
+
+ for (i = 0; i < TEST_CYCLES; ++i) {
+ for (j = 0; j < size / MB; j++) {
+ /* look for GUID at every 1Mb block */
+ uint64_t addr = start + j * MB;
+
+ qtest_memread(qts, addr, data, sizeof(data));
+ if (!memcmp(AcpiTestSupportGuid, data, sizeof(data))) {
+ UefiTestSupport ret;
+
+ qtest_memread(qts, addr, &ret, sizeof(ret));
+ ret.rsdp10 = le64_to_cpu(ret.rsdp10);
+ ret.rsdp20 = le64_to_cpu(ret.rsdp20);
+ return ret.rsdp20 ? ret.rsdp20 : ret.rsdp10;
+ }
+ }
+ g_usleep(TEST_DELAY);
+ }
+ g_assert_not_reached();
+ return 0;
+}
--
2.7.4
- Re: [Qemu-devel] [PATCH v3 13/13] tests: acpi: print error unable to dump ACPI table during rebuild, (continued)
- [Qemu-devel] [PATCH v3 12/13] tests: acpi: refactor rebuild-expected-aml.sh to dump ACPI tables for a specified list of targets, Igor Mammedov, 2019/04/25
- [Qemu-devel] [PATCH v3 11/13] tests: acpi: add simple arm/virt testcase, Igor Mammedov, 2019/04/25
- [Qemu-devel] [PATCH v3 10/13] tests: add expected ACPI tables for arm/virt board, Igor Mammedov, 2019/04/25
- [Qemu-devel] [PATCH v3 09/13] tests: acpi: ignore SMBIOS tests when UEFI firmware is used, Igor Mammedov, 2019/04/25
- [Qemu-devel] [PATCH v3 08/13] tests: acpi: add a way to start tests with UEFI firmware, Igor Mammedov, 2019/04/25
- [Qemu-devel] [PATCH v3 07/13] tests: acpi: add acpi_find_rsdp_address_uefi() helper,
Igor Mammedov <=
- [Qemu-devel] [PATCH v3 06/13] tests: acpi: move boot_sector_init() into x86 tests branch, Igor Mammedov, 2019/04/25
- [Qemu-devel] [PATCH v3 05/13] tests: acpi: skip FACS table if board uses hw reduced ACPI profile, Igor Mammedov, 2019/04/25
- [Qemu-devel] [PATCH v3 04/13] tests: acpi: fetch X_DSDT if pointer to DSDT is 0, Igor Mammedov, 2019/04/25
- [Qemu-devel] [PATCH v3 03/13] tests: acpi: make pointer to RSDP 64bit, Igor Mammedov, 2019/04/25