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| author | Sia Jee Heng <jeeheng.sia@starfivetech.com> | 2024-10-27 18:57:43 -0700 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2024-12-20 11:22:47 +1000 |
| commit | 6ab861421c90d4392003081c2a3952b5b5df0204 (patch) | |
| tree | df9b9a506dbc2739298cfb4fb48be04263285d5a /hw/acpi | |
| parent | a205d0bcc89c887efcb636924b98e9f77d637369 (diff) | |
| download | qemu-6ab861421c90d4392003081c2a3952b5b5df0204.zip qemu-6ab861421c90d4392003081c2a3952b5b5df0204.tar.gz qemu-6ab861421c90d4392003081c2a3952b5b5df0204.tar.bz2 | |
hw/acpi: Upgrade ACPI SPCR table to support SPCR table revision 4 format
Update the SPCR table to accommodate the SPCR Table revision 4 [1].
The SPCR table has been modified to adhere to the revision 4 format [2].
[1]: https://learn.microsoft.com/en-us/windows-hardware/drivers/serports/serial-port-console-redirection-table
[2]: https://github.com/acpica/acpica/pull/931
Signed-off-by: Sia Jee Heng <jeeheng.sia@starfivetech.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-ID: <20241028015744.624943-3-jeeheng.sia@starfivetech.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/acpi')
| -rw-r--r-- | hw/acpi/aml-build.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c index 72282b1..e4d58d7 100644 --- a/hw/acpi/aml-build.c +++ b/hw/acpi/aml-build.c @@ -2078,7 +2078,7 @@ static void build_processor_hierarchy_node(GArray *tbl, uint32_t flags, void build_spcr(GArray *table_data, BIOSLinker *linker, const AcpiSpcrData *f, const uint8_t rev, - const char *oem_id, const char *oem_table_id) + const char *oem_id, const char *oem_table_id, const char *name) { AcpiTable table = { .sig = "SPCR", .rev = rev, .oem_id = oem_id, .oem_table_id = oem_table_id }; @@ -2124,9 +2124,21 @@ void build_spcr(GArray *table_data, BIOSLinker *linker, build_append_int_noprefix(table_data, f->pci_flags, 4); /* PCI Segment */ build_append_int_noprefix(table_data, f->pci_segment, 1); - /* Reserved */ - build_append_int_noprefix(table_data, 0, 4); - + if (rev < 4) { + /* Reserved */ + build_append_int_noprefix(table_data, 0, 4); + } else { + /* UartClkFreq */ + build_append_int_noprefix(table_data, f->uart_clk_freq, 4); + /* PreciseBaudrate */ + build_append_int_noprefix(table_data, f->precise_baudrate, 4); + /* NameSpaceStringLength */ + build_append_int_noprefix(table_data, f->namespace_string_length, 2); + /* NameSpaceStringOffset */ + build_append_int_noprefix(table_data, f->namespace_string_offset, 2); + /* NamespaceString[] */ + g_array_append_vals(table_data, name, f->namespace_string_length); + } acpi_table_end(linker, &table); } /* |