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X-Received-From: 134.134.136.31 Subject: [Qemu-devel] [PATCH v4 6/8] hw: arm: Support both legacy and current RSDP build X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Peter Maydell , Thomas Huth , Eduardo Habkost , Ben Warren , "Michael S. Tsirkin" , Shannon Zhao , qemu-arm@nongnu.org, Paolo Bonzini , Igor Mammedov , Richard Henderson Errors-To: qemu-devel-bounces+alex.bennee=linaro.org@nongnu.org Sender: "Qemu-devel" X-TUID: n1i4fhtKgZfV We add the ability to build legacy or current RSDP tables, based on the AcpiRsdpData revision field passed to build_rsdp(). Although arm/virt only uses RSDP v2, adding that capability to build_rsdp will allow us to share the RSDP build code between ARM and x86. Signed-off-by: Samuel Ortiz Reviewed-by: Igor Mammedov Reviewed-by: Andrew Jones --- hw/arm/virt-acpi-build.c | 38 +++++++++++++++++++++++++++++++++----- 1 file changed, 33 insertions(+), 5 deletions(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 4a6b53fbfc..05f6654371 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -372,6 +372,20 @@ build_rsdp(GArray *tbl, BIOSLinker *linker, AcpiRsdpData *rsdp_data) { int tbl_off = tbl->len; /* Table offset in the RSDP file */ + switch (rsdp_data->revision) { + case 0: + /* With ACPI 1.0, we must have an RSDT pointer */ + g_assert(rsdp_data->rsdt_tbl_offset); + break; + case 2: + /* With ACPI 2.0+, we must have an XSDT pointer */ + g_assert(rsdp_data->xsdt_tbl_offset); + break; + default: + /* Only revisions 0 (ACPI 1.0) and 2 (ACPI 2.0+) are valid for RSDP */ + g_assert_not_reached(); + } + bios_linker_loader_alloc(linker, ACPI_BUILD_RSDP_FILE, tbl, 16, true /* fseg memory */); @@ -380,10 +394,29 @@ build_rsdp(GArray *tbl, BIOSLinker *linker, AcpiRsdpData *rsdp_data) g_array_append_vals(tbl, rsdp_data->oem_id, 6); /* OEMID */ build_append_int_noprefix(tbl, rsdp_data->revision, 1); /* Revision */ build_append_int_noprefix(tbl, 0, 4); /* RsdtAddress */ + if (rsdp_data->rsdt_tbl_offset) { + /* RSDT address to be filled by guest linker */ + bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE, + tbl_off + 16, 4, + ACPI_BUILD_TABLE_FILE, + *rsdp_data->rsdt_tbl_offset); + } + + /* Checksum to be filled by guest linker */ + bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE, + tbl_off, 20, /* ACPI rev 1.0 RSDP size */ + 8); + + if (rsdp_data->revision == 0) { + /* ACPI 1.0 RSDP, we're done */ + return; + } + build_append_int_noprefix(tbl, 36, 4); /* Length */ /* XSDT address to be filled by guest linker */ build_append_int_noprefix(tbl, 0, 8); /* XsdtAddress */ + /* We already validated our xsdt pointer */ bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE, tbl_off + 24, 8, ACPI_BUILD_TABLE_FILE, @@ -392,11 +425,6 @@ build_rsdp(GArray *tbl, BIOSLinker *linker, AcpiRsdpData *rsdp_data) build_append_int_noprefix(tbl, 0, 1); /* Extended Checksum */ build_append_int_noprefix(tbl, 0, 3); /* Reserved */ - /* Checksum to be filled by guest linker */ - bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE, - tbl_off, 20, /* ACPI rev 1.0 RSDP size */ - 8); - /* Extended checksum to be filled by Guest linker */ bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE, tbl_off, 36, /* ACPI rev 2.0 RSDP size */ -- 2.19.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37636) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gYqcO-00038B-3x for qemu-devel@nongnu.org; Mon, 17 Dec 2018 05:59:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gYqSw-0003WK-Ec for qemu-devel@nongnu.org; Mon, 17 Dec 2018 05:49:40 -0500 From: Samuel Ortiz Date: Mon, 17 Dec 2018 11:48:36 +0100 Message-Id: <20181217104838.18957-7-sameo@linux.intel.com> In-Reply-To: <20181217104838.18957-1-sameo@linux.intel.com> References: <20181217104838.18957-1-sameo@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v4 6/8] hw: arm: Support both legacy and current RSDP build List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Laurent Vivier , Thomas Huth , Peter Maydell , Marcel Apfelbaum , Richard Henderson , "Michael S. Tsirkin" , Ben Warren , Shannon Zhao , qemu-arm@nongnu.org, Igor Mammedov , Eduardo Habkost , Paolo Bonzini We add the ability to build legacy or current RSDP tables, based on the AcpiRsdpData revision field passed to build_rsdp(). Although arm/virt only uses RSDP v2, adding that capability to build_rsdp will allow us to share the RSDP build code between ARM and x86. Signed-off-by: Samuel Ortiz Reviewed-by: Igor Mammedov Reviewed-by: Andrew Jones --- hw/arm/virt-acpi-build.c | 38 +++++++++++++++++++++++++++++++++----- 1 file changed, 33 insertions(+), 5 deletions(-) diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 4a6b53fbfc..05f6654371 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -372,6 +372,20 @@ build_rsdp(GArray *tbl, BIOSLinker *linker, AcpiRsdpData *rsdp_data) { int tbl_off = tbl->len; /* Table offset in the RSDP file */ + switch (rsdp_data->revision) { + case 0: + /* With ACPI 1.0, we must have an RSDT pointer */ + g_assert(rsdp_data->rsdt_tbl_offset); + break; + case 2: + /* With ACPI 2.0+, we must have an XSDT pointer */ + g_assert(rsdp_data->xsdt_tbl_offset); + break; + default: + /* Only revisions 0 (ACPI 1.0) and 2 (ACPI 2.0+) are valid for RSDP */ + g_assert_not_reached(); + } + bios_linker_loader_alloc(linker, ACPI_BUILD_RSDP_FILE, tbl, 16, true /* fseg memory */); @@ -380,10 +394,29 @@ build_rsdp(GArray *tbl, BIOSLinker *linker, AcpiRsdpData *rsdp_data) g_array_append_vals(tbl, rsdp_data->oem_id, 6); /* OEMID */ build_append_int_noprefix(tbl, rsdp_data->revision, 1); /* Revision */ build_append_int_noprefix(tbl, 0, 4); /* RsdtAddress */ + if (rsdp_data->rsdt_tbl_offset) { + /* RSDT address to be filled by guest linker */ + bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE, + tbl_off + 16, 4, + ACPI_BUILD_TABLE_FILE, + *rsdp_data->rsdt_tbl_offset); + } + + /* Checksum to be filled by guest linker */ + bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE, + tbl_off, 20, /* ACPI rev 1.0 RSDP size */ + 8); + + if (rsdp_data->revision == 0) { + /* ACPI 1.0 RSDP, we're done */ + return; + } + build_append_int_noprefix(tbl, 36, 4); /* Length */ /* XSDT address to be filled by guest linker */ build_append_int_noprefix(tbl, 0, 8); /* XsdtAddress */ + /* We already validated our xsdt pointer */ bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE, tbl_off + 24, 8, ACPI_BUILD_TABLE_FILE, @@ -392,11 +425,6 @@ build_rsdp(GArray *tbl, BIOSLinker *linker, AcpiRsdpData *rsdp_data) build_append_int_noprefix(tbl, 0, 1); /* Extended Checksum */ build_append_int_noprefix(tbl, 0, 3); /* Reserved */ - /* Checksum to be filled by guest linker */ - bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE, - tbl_off, 20, /* ACPI rev 1.0 RSDP size */ - 8); - /* Extended checksum to be filled by Guest linker */ bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE, tbl_off, 36, /* ACPI rev 2.0 RSDP size */ -- 2.19.2