diff options
| author | Shannon Zhao <shannon.zhao@linaro.org> | 2015-05-29 11:28:55 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-05-29 11:28:55 +0100 |
| commit | c2f7c0c306dcd56725b506d3743eed421e6d0994 (patch) | |
| tree | 56bd17211f5529c470dade09389ec771caffa8f6 /hw/arm/virt-acpi-build.c | |
| parent | dfccd8cfd7c5d1b6740463821d84106bbaced44c (diff) | |
hw/arm/virt-acpi-build: Generate FADT table and update ACPI headers
In the case of mach virt, it is used to set the Hardware Reduced bit
and enable PSCI SMP booting through HVC. So ignore FACS and FADT
points to DSDT.
Update the header definitions for FADT taking into account the new
additions of ACPI v5.1 in `include/hw/acpi/acpi-defs.h`
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id: 1432522520-8068-9-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm/virt-acpi-build.c')
| -rw-r--r-- | hw/arm/virt-acpi-build.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c index 2cf2cc5f09..079150103c 100644 --- a/hw/arm/virt-acpi-build.c +++ b/hw/arm/virt-acpi-build.c @@ -137,6 +137,31 @@ static void acpi_dsdt_add_virtio(Aml *scope, } } +/* FADT */ +static void +build_fadt(GArray *table_data, GArray *linker, unsigned dsdt) +{ + AcpiFadtDescriptorRev5_1 *fadt = acpi_data_push(table_data, sizeof(*fadt)); + + /* Hardware Reduced = 1 and use PSCI 0.2+ and with HVC */ + fadt->flags = cpu_to_le32(1 << ACPI_FADT_F_HW_REDUCED_ACPI); + fadt->arm_boot_flags = cpu_to_le16((1 << ACPI_FADT_ARM_USE_PSCI_G_0_2) | + (1 << ACPI_FADT_ARM_PSCI_USE_HVC)); + + /* ACPI v5.1 (fadt->revision.fadt->minor_revision) */ + fadt->minor_revision = 0x1; + + fadt->dsdt = cpu_to_le32(dsdt); + /* DSDT address to be filled by Guest linker */ + bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE, + ACPI_BUILD_TABLE_FILE, + table_data, &fadt->dsdt, + sizeof fadt->dsdt); + + build_header(linker, table_data, + (void *)fadt, "FACP", sizeof(*fadt), 5); +} + /* DSDT */ static void build_dsdt(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info) @@ -183,6 +208,7 @@ static void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables) { GArray *table_offsets; + unsigned dsdt; GArray *tables_blob = tables->table_data; table_offsets = g_array_new(false, true /* clear */, @@ -202,8 +228,13 @@ void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables) */ /* DSDT is pointed to by FADT */ + dsdt = tables_blob->len; build_dsdt(tables_blob, tables->linker, guest_info); + /* FADT MADT GTDT pointed to by RSDT */ + acpi_add_table(table_offsets, tables_blob); + build_fadt(tables_blob, tables->linker, dsdt); + /* Cleanup memory that's no longer used. */ g_array_free(table_offsets, true); } |