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// SPDX-License-Identifier: GPL-2.0
/*
* PAPR (pseries) hcall support.
*/
#include "kvm_util.h"
#include "hcall.h"
s64 hcall0(u64 token)
{
register uintptr_t r3 asm ("r3") = token;
asm volatile("sc 1" : "+r"(r3) :
: "r0", "r4", "r5", "r6", "r7", "r8", "r9",
"r10", "r11", "r12", "ctr", "xer",
"cc", "memory");
return r3;
}
s64 hcall1(u64 token, u64 arg1)
{
register uintptr_t r3 asm ("r3") = token;
register uintptr_t r4 asm ("r4") = arg1;
asm volatile("sc 1" : "+r"(r3), "+r"(r4) :
: "r0", "r5", "r6", "r7", "r8", "r9",
"r10", "r11", "r12", "ctr", "xer",
"cc", "memory");
return r3;
}
s64 hcall2(u64 token, u64 arg1, u64 arg2)
{
register uintptr_t r3 asm ("r3") = token;
register uintptr_t r4 asm ("r4") = arg1;
register uintptr_t r5 asm ("r5") = arg2;
asm volatile("sc 1" : "+r"(r3), "+r"(r4), "+r"(r5) :
: "r0", "r6", "r7", "r8", "r9",
"r10", "r11", "r12", "ctr", "xer",
"cc", "memory");
return r3;
}
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