diff options
| author | Michael Roth <mdroth@linux.vnet.ibm.com> | 2015-05-07 15:33:47 +1000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2015-06-03 23:56:53 +0200 |
| commit | ab316865db8ee97c53cd70c91b1b160c474102f8 (patch) | |
| tree | cb1e738138ef294a35782833645c3620dc58ae13 | |
| parent | 886445a6ee808ee06533f9ecdf0f169c9ea83fbb (diff) | |
spapr: add rtas_st_buffer_direct() helper
This is similar to the existing rtas_st_buffer(), but for cases
where the guest is not expecting a length-encoded byte array.
Namely, for calls where a "work area" buffer is used to pass
around arbitrary fields/data.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
| -rw-r--r-- | include/hw/ppc/spapr.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h index 88109110bb..65ef7dd9f2 100644 --- a/include/hw/ppc/spapr.h +++ b/include/hw/ppc/spapr.h @@ -464,6 +464,13 @@ static inline void rtas_st(target_ulong phys, int n, uint32_t val) stl_be_phys(&address_space_memory, ppc64_phys_to_real(phys + 4*n), val); } +static inline void rtas_st_buffer_direct(target_ulong phys, + target_ulong phys_len, + uint8_t *buffer, uint16_t buffer_len) +{ + cpu_physical_memory_write(ppc64_phys_to_real(phys), buffer, + MIN(buffer_len, phys_len)); +} static inline void rtas_st_buffer(target_ulong phys, target_ulong phys_len, uint8_t *buffer, uint16_t buffer_len) @@ -473,8 +480,7 @@ static inline void rtas_st_buffer(target_ulong phys, target_ulong phys_len, } stw_be_phys(&address_space_memory, ppc64_phys_to_real(phys), buffer_len); - cpu_physical_memory_write(ppc64_phys_to_real(phys + 2), - buffer, MIN(buffer_len, phys_len - 2)); + rtas_st_buffer_direct(phys + 2, phys_len - 2, buffer, buffer_len); } typedef void (*spapr_rtas_fn)(PowerPCCPU *cpu, sPAPREnvironment *spapr, |