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| author | Anthony Liguori <aliguori@us.ibm.com> | 2013-06-19 15:40:30 -0500 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2013-07-01 01:11:16 +0200 |
| commit | 210b580b106fa798149e28aa13c66b325a43204e (patch) | |
| tree | ec7bc9e868e6f622dadebe8633f5b60da0c33de4 /include/hw | |
| parent | 159f8286b760deace1008f5f68a46cadba337780 (diff) | |
| download | qemu-210b580b106fa798149e28aa13c66b325a43204e.zip | |
spapr-rtas: add CPU argument to RTAS calls
RTAS is a hypervisor provided binary blob that a guest loads and
calls into to execute certain functions. It's similar to the
vsyscall page in Linux or the short lived VMCI paravirt interface
from VMware.
The QEMU implementation of the RTAS blob is simply a passthrough
that proxies all RTAS calls to the hypervisor via an hypercall.
While we pass a CPU argument for hypercall handling in QEMU, we
don't pass it for RTAS calls. Since some RTAs calls require
making hypercalls (normally RTAS is implemented as guest code) we
have nasty hacks to allow that.
Add a CPU argument to RTAS call handling so we can more easily
invoke hypercalls just as guest code would.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/ppc/spapr.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index a83720ee65..09c4570982 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -319,11 +319,12 @@ static inline void rtas_st(target_ulong phys, int n, uint32_t val) stl_be_phys(phys + 4*n, val); } -typedef void (*spapr_rtas_fn)(sPAPREnvironment *spapr, uint32_t token, +typedef void (*spapr_rtas_fn)(PowerPCCPU *cpu, sPAPREnvironment *spapr, + uint32_t token, uint32_t nargs, target_ulong args, uint32_t nret, target_ulong rets); int spapr_rtas_register(const char *name, spapr_rtas_fn fn); -target_ulong spapr_rtas_call(sPAPREnvironment *spapr, +target_ulong spapr_rtas_call(PowerPCCPU *cpu, sPAPREnvironment *spapr, uint32_t token, uint32_t nargs, target_ulong args, uint32_t nret, target_ulong rets); int spapr_rtas_device_tree_setup(void *fdt, hwaddr rtas_addr, |