OpenE2K/linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

KVM: PPC: PR: Fill pvinfo hcall instructions in big endian

Browse Source 
We expose a blob of hypercall instructions to user space that it gives to
the guest via device tree again. That blob should contain a stream of
instructions necessary to do a hypercall in big endian, as it just gets
passed into the guest and old guests use them straight away.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2014-04-24 13:39:16 +02:00
parent b59d9d26be
commit 2743103f91
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
arch/powerpc/kvm/powerpc.c
View File

@ -1015,10 +1015,10 @@ static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo)
u32 inst_nop = 0x60000000;
#ifdef CONFIG_KVM_BOOKE_HV
u32 inst_sc1 = 0x44000022;
pvinfo->hcall[0] = inst_sc1;
pvinfo->hcall[1] = inst_nop;
pvinfo->hcall[2] = inst_nop;
pvinfo->hcall[3] = inst_nop;
pvinfo->hcall[0] = cpu_to_be32(inst_sc1);
pvinfo->hcall[1] = cpu_to_be32(inst_nop);
pvinfo->hcall[2] = cpu_to_be32(inst_nop);
pvinfo->hcall[3] = cpu_to_be32(inst_nop);
#else
u32 inst_lis = 0x3c000000;
u32 inst_ori = 0x60000000;
@ -1034,10 +1034,10 @@ static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo)
* sc
* nop
*/
pvinfo->hcall[0] = inst_lis | ((KVM_SC_MAGIC_R0 >> 16) & inst_imm_mask);
pvinfo->hcall[1] = inst_ori | (KVM_SC_MAGIC_R0 & inst_imm_mask);
pvinfo->hcall[2] = inst_sc;
pvinfo->hcall[3] = inst_nop;
pvinfo->hcall[0] = cpu_to_be32(inst_lis | ((KVM_SC_MAGIC_R0 >> 16) & inst_imm_mask));
pvinfo->hcall[1] = cpu_to_be32(inst_ori | (KVM_SC_MAGIC_R0 & inst_imm_mask));
pvinfo->hcall[2] = cpu_to_be32(inst_sc);
pvinfo->hcall[3] = cpu_to_be32(inst_nop);
#endif
pvinfo->flags = KVM_PPC_PVINFO_FLAGS_EV_IDLE;