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pseries: Implement hcall-bulk hypervisor interface

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This patch adds support for the H_REMOVE_BULK hypercall on the pseries
machine.  Strictly speaking this isn't necessarym since the kernel will
only attempt to use this if hcall-bulk is advertised in the device tree,
which previously it was not.

Adding this support may give a marginal performance increase, but more
importantly it reduces the differences between the emulated machine and
an existing PowerVM or kvm system, both of which already implement
hcall-bulk.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
David Gibson 2011-08-31 15:50:50 +00:00 • committed by Alexander Graf
parent 697ab89278
commit a3d0abaeca
2 changed files with 114 additions and 13 deletions
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2
hw/spapr.c
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@ -75,7 +75,7 @@ static void *spapr_create_fdt_skel(const char *cpu_model,
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\0hcall-interrupt"
"\0hcall-tce\0hcall-vio\0hcall-splpar";
"\0hcall-tce\0hcall-vio\0hcall-splpar\0hcall-bulk";
uint32_t interrupt_server_ranges_prop[] = {0, cpu_to_be32(smp_cpus)};
int i;
char *modelname;