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authorMichael Roth <mdroth@linux.vnet.ibm.com>2015-05-07 15:33:47 +1000
committerAlexander Graf <agraf@suse.de>2015-06-03 23:56:53 +0200
commitab316865db8ee97c53cd70c91b1b160c474102f8 (patch)
treecb1e738138ef294a35782833645c3620dc58ae13 /include/hw/ppc
parent886445a6ee808ee06533f9ecdf0f169c9ea83fbb (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>
Diffstat (limited to 'include/hw/ppc')
-rw-r--r--include/hw/ppc/spapr.h10
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,