Re: [PATCH] KVM: PPC: Book3S HV: Use GLOBAL_TOC for kvmppc_h_set_dabr/xdabr()

2021-11-17 Thread Michael Ellerman
On Fri, 24 Sep 2021 01:10:31 +1000, Michael Ellerman wrote: > kvmppc_h_set_dabr(), and kvmppc_h_set_xdabr() which jumps into > it, need to use _GLOBAL_TOC to setup the kernel TOC pointer, because > kvmppc_h_set_dabr() uses LOAD_REG_ADDR() to load dawr_force_enable. > > When called from

Re: [PATCH] KVM: PPC: Book3S HV: Use GLOBAL_TOC for kvmppc_h_set_dabr/xdabr()

2021-09-30 Thread Jordan Niethe
On Thu, Sep 30, 2021 at 4:13 PM Daniel Axtens wrote: > > Hi Michael, > > > kvmppc_h_set_dabr(), and kvmppc_h_set_xdabr() which jumps into > > it, need to use _GLOBAL_TOC to setup the kernel TOC pointer, because > > kvmppc_h_set_dabr() uses LOAD_REG_ADDR() to load dawr_force_enable. > > This makes

Re: [PATCH] KVM: PPC: Book3S HV: Use GLOBAL_TOC for kvmppc_h_set_dabr/xdabr()

2021-09-30 Thread Daniel Axtens
Hi Michael, > kvmppc_h_set_dabr(), and kvmppc_h_set_xdabr() which jumps into > it, need to use _GLOBAL_TOC to setup the kernel TOC pointer, because > kvmppc_h_set_dabr() uses LOAD_REG_ADDR() to load dawr_force_enable. This makes sense. LOAD_REG_ADDR() does ld reg,name@got(r2) and _GLOBAL_TOC

[PATCH] KVM: PPC: Book3S HV: Use GLOBAL_TOC for kvmppc_h_set_dabr/xdabr()

2021-09-23 Thread Michael Ellerman
kvmppc_h_set_dabr(), and kvmppc_h_set_xdabr() which jumps into it, need to use _GLOBAL_TOC to setup the kernel TOC pointer, because kvmppc_h_set_dabr() uses LOAD_REG_ADDR() to load dawr_force_enable. When called from hcall_try_real_mode() we have the kernel TOC in r2, established near the start