Add PAPR H_VIO_SIGNAL hypercall and infrastructure for VIO interrupts

This patch adds infrastructure to support interrupts from PAPR virtual IO
devices.  This includes correctly advertising those interrupts in the
device tree, and implementing the H_VIO_SIGNAL hypercall, used to
enable and disable individual device interrupts.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
David Gibson 2011-04-01 15:15:26 +11:00 committed by Alexander Graf
parent b5cec4c5f2
commit 00dc738d8a
3 changed files with 44 additions and 1 deletions

View file

@ -65,7 +65,7 @@ static void *spapr_create_fdt(int *fdt_size, ram_addr_t ramsize,
uint32_t start_prop = cpu_to_be32(initrd_base);
uint32_t end_prop = cpu_to_be32(initrd_base + initrd_size);
uint32_t pft_size_prop[] = {0, cpu_to_be32(hash_shift)};
char hypertas_prop[] = "hcall-pft\0hcall-term\0hcall-dabr";
char hypertas_prop[] = "hcall-pft\0hcall-term\0hcall-dabr\0hcall-interrupt";
uint32_t interrupt_server_ranges_prop[] = {0, cpu_to_be32(smp_cpus)};
int i;
char *modelname;