This adds the hypercall numbers and wrapper functions for the hash page
table resizing hypercalls.
These are experimental "platform specific" values for now, until we have a
formal PAPR update.
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
arch/powerpc/include/asm/hvcall.h | 2 ++
arch/powerpc/include/asm/plpar_wrappers.h | 12 ++++++++++++
2 files changed, 14 insertions(+)
diff --git a/arch/powerpc/include/asm/hvcall.h
b/arch/powerpc/include/asm/hvcall.h
index 85bc8c0..ae1fcb7 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -273,6 +273,8 @@
/* Platform specific hcalls, used by KVM */
#define H_RTAS 0xf000
+#define H_RESIZE_HPT_PREPARE 0xf003
+#define H_RESIZE_HPT_COMMIT 0xf004
/* "Platform specific hcalls", provided by PHYP */
#define H_GET_24X7_CATALOG_PAGE 0xF078
diff --git a/arch/powerpc/include/asm/plpar_wrappers.h
b/arch/powerpc/include/asm/plpar_wrappers.h
index 67859ed..8f1d8fe 100644
--- a/arch/powerpc/include/asm/plpar_wrappers.h
+++ b/arch/powerpc/include/asm/plpar_wrappers.h
@@ -225,6 +225,18 @@ static inline long plpar_pte_protect(unsigned long flags,
unsigned long ptex,
return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn);
}
+static inline long plpar_resize_hpt_prepare(unsigned long flags,
+ unsigned long shift)
+{
+ return plpar_hcall_norets(H_RESIZE_HPT_PREPARE, flags, shift);
+}
+
+static inline long plpar_resize_hpt_commit(unsigned long flags,
+ unsigned long shift)
+{
+ return plpar_hcall_norets(H_RESIZE_HPT_COMMIT, flags, shift);
+}
+
static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba,
unsigned long *tce_ret)
{
--
2.5.0
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