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authorLaszlo Ersek <lersek@redhat.com>2016-01-18 15:12:12 +0100
committerMichael S. Tsirkin <mst@redhat.com>2016-02-06 20:44:10 +0200
commit88594e4fd1e916b778968b2bdd8d7375ca2fe8d8 (patch)
treeda3dd41042acf372398cd68e3e5469a0b06b19b5 /hw
parent5151355898699eb66fad0a710b8b6011690a0dfc (diff)
acpi: add function to extract oem_id and oem_table_id from the user's SLIC
The acpi_get_slic_oem() function stores pointers to these fields in the (first) SLIC table that the user passes in with the -acpitable switch. Cc: "Michael S. Tsirkin" <mst@redhat.com> (supporter:ACPI/SMBIOS) Cc: Igor Mammedov <imammedo@redhat.com> (supporter:ACPI/SMBIOS) Cc: Richard W.M. Jones <rjones@redhat.com> Cc: Aleksei Kovura <alex3kov@zoho.com> Cc: Michael Tokarev <mjt@tls.msk.ru> Cc: Steven Newbury <steve@snewbury.org.uk> RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1248758 LP: https://bugs.launchpad.net/qemu/+bug/1533848 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Steven Newbury <steve@snewbury.org.uk>
Diffstat (limited to 'hw')
-rw-r--r--hw/acpi/core.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/hw/acpi/core.c b/hw/acpi/core.c
index 397e6da9b6..edf3f960a7 100644
--- a/hw/acpi/core.c
+++ b/hw/acpi/core.c
@@ -350,6 +350,22 @@ uint8_t *acpi_table_next(uint8_t *current)
}
}
+int acpi_get_slic_oem(AcpiSlicOem *oem)
+{
+ uint8_t *u;
+
+ for (u = acpi_table_first(); u; u = acpi_table_next(u)) {
+ struct acpi_table_header *hdr = (void *)(u - sizeof(hdr->_length));
+
+ if (memcmp(hdr->sig, "SLIC", 4) == 0) {
+ oem->id = hdr->oem_id;
+ oem->table_id = hdr->oem_table_id;
+ return 0;
+ }
+ }
+ return -1;
+}
+
static void acpi_notify_wakeup(Notifier *notifier, void *data)
{
ACPIREGS *ar = container_of(notifier, ACPIREGS, wakeup);