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ppc/spapr/ddw: Add 2M pagesize

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Recently the LoPAPR spec got a new 2MB pagesize to support in Dynamic DMA
Windows API (DDW), this adds the new flag.

Linux supports it since
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=38727311871

Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20220321071945.918669-1-aik@ozlabs.ru>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This commit is contained in:
Alexey Kardashevskiy 2022-03-21 18:19:45 +11:00 committed by Daniel Henrique Barboza
parent 5dd0be53e8
commit 4c7daca302
2 changed files with 2 additions and 0 deletions
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1
hw/ppc/spapr_rtas_ddw.c
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@ -72,6 +72,7 @@ static uint32_t spapr_page_mask_to_query_mask(uint64_t page_mask)
const struct { int shift; uint32_t mask; } masks[] = {
{ 12, RTAS_DDW_PGSIZE_4K },
{ 16, RTAS_DDW_PGSIZE_64K },
{ 21, RTAS_DDW_PGSIZE_2M },
{ 24, RTAS_DDW_PGSIZE_16M },
{ 25, RTAS_DDW_PGSIZE_32M },
{ 26, RTAS_DDW_PGSIZE_64M },

1
include/hw/ppc/spapr.h
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@ -745,6 +745,7 @@ void push_sregs_to_kvm_pr(SpaprMachineState *spapr);
#define RTAS_DDW_PGSIZE_128M 0x20
#define RTAS_DDW_PGSIZE_256M 0x40
#define RTAS_DDW_PGSIZE_16G 0x80
#define RTAS_DDW_PGSIZE_2M 0x100
/* RTAS tokens */
#define RTAS_TOKEN_BASE 0x2000