diff mbox series

[v10,03/19] RISC-V: Add hypervisor extension related CSR defines

Message ID 20191223113443.68969-4-anup.patel@wdc.com (mailing list archive)
State New, archived
Headers show
Series KVM RISC-V Support | expand

Commit Message

Anup Patel Dec. 23, 2019, 11:35 a.m. UTC 
This patch extends asm/csr.h by adding RISC-V hypervisor extension
related defines.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alexander Graf <graf@amazon.com>
---
 arch/riscv/include/asm/csr.h | 78 ++++++++++++++++++++++++++++++++++--
 1 file changed, 75 insertions(+), 3 deletions(-)

Comments

Palmer Dabbelt Jan. 16, 2020, 7:51 p.m. UTC | #1 
On Mon, 23 Dec 2019 03:35:33 PST (-0800), Anup Patel wrote:
> This patch extends asm/csr.h by adding RISC-V hypervisor extension
> related defines.
>
> Signed-off-by: Anup Patel <anup.patel@wdc.com>
> Acked-by: Paolo Bonzini <pbonzini@redhat.com>
> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
> Reviewed-by: Alexander Graf <graf@amazon.com>
> ---
>  arch/riscv/include/asm/csr.h | 78 ++++++++++++++++++++++++++++++++++--
>  1 file changed, 75 insertions(+), 3 deletions(-)
>
> diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
> index 0a62d2d68455..afb6733475c2 100644
> --- a/arch/riscv/include/asm/csr.h
> +++ b/arch/riscv/include/asm/csr.h
> @@ -30,6 +30,8 @@
>  #define SR_XS_CLEAN	_AC(0x00010000, UL)
>  #define SR_XS_DIRTY	_AC(0x00018000, UL)
>  
> +#define SR_MXR		_AC(0x00080000, UL)
> +
>  #ifndef CONFIG_64BIT
>  #define SR_SD		_AC(0x80000000, UL) /* FS/XS dirty */
>  #else
> @@ -51,26 +53,74 @@
>  #define CAUSE_IRQ_FLAG		(_AC(1, UL) << (__riscv_xlen - 1))
>  
>  /* Interrupt causes (minus the high bit) */
> -#define IRQ_U_SOFT		0
>  #define IRQ_S_SOFT		1
> +#define IRQ_VS_SOFT		2

Again: please don't mix up cleanups with the KVM port.  It's reasonable to
remove the N extension cruft as it's still in draft and we probably won't
implement it in Linux, but that shouldn't be mixed up with the KVM
implementation.

>  #define IRQ_M_SOFT		3
> -#define IRQ_U_TIMER		4
>  #define IRQ_S_TIMER		5
> +#define IRQ_VS_TIMER		6
>  #define IRQ_M_TIMER		7
> -#define IRQ_U_EXT		8
>  #define IRQ_S_EXT		9
> +#define IRQ_VS_EXT		10
>  #define IRQ_M_EXT		11
>  
>  /* Exception causes */
>  #define EXC_INST_MISALIGNED	0
>  #define EXC_INST_ACCESS		1
> +#define EXC_INST_ILLEGAL	2
>  #define EXC_BREAKPOINT		3
>  #define EXC_LOAD_ACCESS		5
>  #define EXC_STORE_ACCESS	7
>  #define EXC_SYSCALL		8
> +#define EXC_HYPERVISOR_SYSCALL	9
> +#define EXC_SUPERVISOR_SYSCALL	10
>  #define EXC_INST_PAGE_FAULT	12
>  #define EXC_LOAD_PAGE_FAULT	13
>  #define EXC_STORE_PAGE_FAULT	15
> +#define EXC_INST_GUEST_PAGE_FAULT	20
> +#define EXC_LOAD_GUEST_PAGE_FAULT	21
> +#define EXC_STORE_GUEST_PAGE_FAULT	23
> +
> +/* HSTATUS flags */
> +#define HSTATUS_VTSR		_AC(0x00400000, UL)
> +#define HSTATUS_VTVM		_AC(0x00100000, UL)
> +#define HSTATUS_SP2V		_AC(0x00000200, UL)
> +#define HSTATUS_SP2P		_AC(0x00000100, UL)
> +#define HSTATUS_SPV		_AC(0x00000080, UL)
> +#define HSTATUS_SPRV		_AC(0x00000001, UL)
> +
> +/* HGATP flags */
> +#define HGATP_MODE_OFF		_AC(0, UL)
> +#define HGATP_MODE_SV32X4	_AC(1, UL)
> +#define HGATP_MODE_SV39X4	_AC(8, UL)
> +#define HGATP_MODE_SV48X4	_AC(9, UL)
> +
> +#define HGATP32_MODE_SHIFT	31
> +#define HGATP32_VMID_SHIFT	22
> +#define HGATP32_VMID_MASK	_AC(0x1FC00000, UL)
> +#define HGATP32_PPN		_AC(0x003FFFFF, UL)
> +
> +#define HGATP64_MODE_SHIFT	60
> +#define HGATP64_VMID_SHIFT	44
> +#define HGATP64_VMID_MASK	_AC(0x03FFF00000000000, UL)
> +#define HGATP64_PPN		_AC(0x00000FFFFFFFFFFF, UL)
> +
> +#ifdef CONFIG_64BIT
> +#define HGATP_PPN		HGATP64_PPN
> +#define HGATP_VMID_SHIFT	HGATP64_VMID_SHIFT
> +#define HGATP_VMID_MASK		HGATP64_VMID_MASK
> +#define HGATP_MODE		(HGATP_MODE_SV39X4 << HGATP64_MODE_SHIFT)
> +#else
> +#define HGATP_PPN		HGATP32_PPN
> +#define HGATP_VMID_SHIFT	HGATP32_VMID_SHIFT
> +#define HGATP_VMID_MASK		HGATP32_VMID_MASK
> +#define HGATP_MODE		(HGATP_MODE_SV32X4 << HGATP32_MODE_SHIFT)
> +#endif
> +
> +/* VSIP & HIP relation */
> +#define VSIP_TO_HIP_SHIFT	(IRQ_VS_SOFT - IRQ_S_SOFT)
> +#define VSIP_VALID_MASK		((_AC(1, UL) << IRQ_S_SOFT) | \
> +				 (_AC(1, UL) << IRQ_S_TIMER) | \
> +				 (_AC(1, UL) << IRQ_S_EXT))
>  
>  /* symbolic CSR names: */
>  #define CSR_CYCLE		0xc00
> @@ -91,6 +141,28 @@
>  #define CSR_SIP			0x144
>  #define CSR_SATP		0x180
>  
> +#define CSR_VSSTATUS		0x200
> +#define CSR_VSIE		0x204
> +#define CSR_VSTVEC		0x205
> +#define CSR_VSSCRATCH		0x240
> +#define CSR_VSEPC		0x241
> +#define CSR_VSCAUSE		0x242
> +#define CSR_VSTVAL		0x243
> +#define CSR_VSIP		0x244
> +#define CSR_VSATP		0x280
> +
> +#define CSR_HSTATUS		0x600
> +#define CSR_HEDELEG		0x602
> +#define CSR_HIDELEG		0x603
> +#define CSR_HIE			0x604
> +#define CSR_HTIMEDELTA		0x605
> +#define CSR_HTIMEDELTAH		0x615
> +#define CSR_HCOUNTERNEN		0x606
> +#define CSR_HTVAL		0x643
> +#define CSR_HIP			0x644
> +#define CSR_HTINST		0x64a
> +#define CSR_HGATP		0x680
> +
>  #define CSR_MSTATUS		0x300
>  #define CSR_MISA		0x301
>  #define CSR_MIE			0x304
> -- 
> 2.17.1
Anup Patel Jan. 17, 2020, 7:14 a.m. UTC | #2 
On Fri, Jan 17, 2020 at 1:21 AM Palmer Dabbelt <palmerdabbelt@google.com> wrote:
>
> On Mon, 23 Dec 2019 03:35:33 PST (-0800), Anup Patel wrote:
> > This patch extends asm/csr.h by adding RISC-V hypervisor extension
> > related defines.
> >
> > Signed-off-by: Anup Patel <anup.patel@wdc.com>
> > Acked-by: Paolo Bonzini <pbonzini@redhat.com>
> > Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
> > Reviewed-by: Alexander Graf <graf@amazon.com>
> > ---
> >  arch/riscv/include/asm/csr.h | 78 ++++++++++++++++++++++++++++++++++--
> >  1 file changed, 75 insertions(+), 3 deletions(-)
> >
> > diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
> > index 0a62d2d68455..afb6733475c2 100644
> > --- a/arch/riscv/include/asm/csr.h
> > +++ b/arch/riscv/include/asm/csr.h
> > @@ -30,6 +30,8 @@
> >  #define SR_XS_CLEAN  _AC(0x00010000, UL)
> >  #define SR_XS_DIRTY  _AC(0x00018000, UL)
> >
> > +#define SR_MXR               _AC(0x00080000, UL)
> > +
> >  #ifndef CONFIG_64BIT
> >  #define SR_SD                _AC(0x80000000, UL) /* FS/XS dirty */
> >  #else
> > @@ -51,26 +53,74 @@
> >  #define CAUSE_IRQ_FLAG               (_AC(1, UL) << (__riscv_xlen - 1))
> >
> >  /* Interrupt causes (minus the high bit) */
> > -#define IRQ_U_SOFT           0
> >  #define IRQ_S_SOFT           1
> > +#define IRQ_VS_SOFT          2
>
> Again: please don't mix up cleanups with the KVM port.  It's reasonable to
> remove the N extension cruft as it's still in draft and we probably won't
> implement it in Linux, but that shouldn't be mixed up with the KVM
> implementation.

Sure, I will send separate patch for removing IRQ_U_xyz defines
and have only H-extension related defines here.

Regards,
Anup

>
> >  #define IRQ_M_SOFT           3
> > -#define IRQ_U_TIMER          4
> >  #define IRQ_S_TIMER          5
> > +#define IRQ_VS_TIMER         6
> >  #define IRQ_M_TIMER          7
> > -#define IRQ_U_EXT            8
> >  #define IRQ_S_EXT            9
> > +#define IRQ_VS_EXT           10
> >  #define IRQ_M_EXT            11
> >
> >  /* Exception causes */
> >  #define EXC_INST_MISALIGNED  0
> >  #define EXC_INST_ACCESS              1
> > +#define EXC_INST_ILLEGAL     2
> >  #define EXC_BREAKPOINT               3
> >  #define EXC_LOAD_ACCESS              5
> >  #define EXC_STORE_ACCESS     7
> >  #define EXC_SYSCALL          8
> > +#define EXC_HYPERVISOR_SYSCALL       9
> > +#define EXC_SUPERVISOR_SYSCALL       10
> >  #define EXC_INST_PAGE_FAULT  12
> >  #define EXC_LOAD_PAGE_FAULT  13
> >  #define EXC_STORE_PAGE_FAULT 15
> > +#define EXC_INST_GUEST_PAGE_FAULT    20
> > +#define EXC_LOAD_GUEST_PAGE_FAULT    21
> > +#define EXC_STORE_GUEST_PAGE_FAULT   23
> > +
> > +/* HSTATUS flags */
> > +#define HSTATUS_VTSR         _AC(0x00400000, UL)
> > +#define HSTATUS_VTVM         _AC(0x00100000, UL)
> > +#define HSTATUS_SP2V         _AC(0x00000200, UL)
> > +#define HSTATUS_SP2P         _AC(0x00000100, UL)
> > +#define HSTATUS_SPV          _AC(0x00000080, UL)
> > +#define HSTATUS_SPRV         _AC(0x00000001, UL)
> > +
> > +/* HGATP flags */
> > +#define HGATP_MODE_OFF               _AC(0, UL)
> > +#define HGATP_MODE_SV32X4    _AC(1, UL)
> > +#define HGATP_MODE_SV39X4    _AC(8, UL)
> > +#define HGATP_MODE_SV48X4    _AC(9, UL)
> > +
> > +#define HGATP32_MODE_SHIFT   31
> > +#define HGATP32_VMID_SHIFT   22
> > +#define HGATP32_VMID_MASK    _AC(0x1FC00000, UL)
> > +#define HGATP32_PPN          _AC(0x003FFFFF, UL)
> > +
> > +#define HGATP64_MODE_SHIFT   60
> > +#define HGATP64_VMID_SHIFT   44
> > +#define HGATP64_VMID_MASK    _AC(0x03FFF00000000000, UL)
> > +#define HGATP64_PPN          _AC(0x00000FFFFFFFFFFF, UL)
> > +
> > +#ifdef CONFIG_64BIT
> > +#define HGATP_PPN            HGATP64_PPN
> > +#define HGATP_VMID_SHIFT     HGATP64_VMID_SHIFT
> > +#define HGATP_VMID_MASK              HGATP64_VMID_MASK
> > +#define HGATP_MODE           (HGATP_MODE_SV39X4 << HGATP64_MODE_SHIFT)
> > +#else
> > +#define HGATP_PPN            HGATP32_PPN
> > +#define HGATP_VMID_SHIFT     HGATP32_VMID_SHIFT
> > +#define HGATP_VMID_MASK              HGATP32_VMID_MASK
> > +#define HGATP_MODE           (HGATP_MODE_SV32X4 << HGATP32_MODE_SHIFT)
> > +#endif
> > +
> > +/* VSIP & HIP relation */
> > +#define VSIP_TO_HIP_SHIFT    (IRQ_VS_SOFT - IRQ_S_SOFT)
> > +#define VSIP_VALID_MASK              ((_AC(1, UL) << IRQ_S_SOFT) | \
> > +                              (_AC(1, UL) << IRQ_S_TIMER) | \
> > +                              (_AC(1, UL) << IRQ_S_EXT))
> >
> >  /* symbolic CSR names: */
> >  #define CSR_CYCLE            0xc00
> > @@ -91,6 +141,28 @@
> >  #define CSR_SIP                      0x144
> >  #define CSR_SATP             0x180
> >
> > +#define CSR_VSSTATUS         0x200
> > +#define CSR_VSIE             0x204
> > +#define CSR_VSTVEC           0x205
> > +#define CSR_VSSCRATCH                0x240
> > +#define CSR_VSEPC            0x241
> > +#define CSR_VSCAUSE          0x242
> > +#define CSR_VSTVAL           0x243
> > +#define CSR_VSIP             0x244
> > +#define CSR_VSATP            0x280
> > +
> > +#define CSR_HSTATUS          0x600
> > +#define CSR_HEDELEG          0x602
> > +#define CSR_HIDELEG          0x603
> > +#define CSR_HIE                      0x604
> > +#define CSR_HTIMEDELTA               0x605
> > +#define CSR_HTIMEDELTAH              0x615
> > +#define CSR_HCOUNTERNEN              0x606
> > +#define CSR_HTVAL            0x643
> > +#define CSR_HIP                      0x644
> > +#define CSR_HTINST           0x64a
> > +#define CSR_HGATP            0x680
> > +
> >  #define CSR_MSTATUS          0x300
> >  #define CSR_MISA             0x301
> >  #define CSR_MIE                      0x304
> > --
> > 2.17.1
diff mbox series

Patch

diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
index 0a62d2d68455..afb6733475c2 100644
--- a/arch/riscv/include/asm/csr.h
+++ b/arch/riscv/include/asm/csr.h
@@ -30,6 +30,8 @@ 
 #define SR_XS_CLEAN	_AC(0x00010000, UL)
 #define SR_XS_DIRTY	_AC(0x00018000, UL)
 
+#define SR_MXR		_AC(0x00080000, UL)
+
 #ifndef CONFIG_64BIT
 #define SR_SD		_AC(0x80000000, UL) /* FS/XS dirty */
 #else
@@ -51,26 +53,74 @@ 
 #define CAUSE_IRQ_FLAG		(_AC(1, UL) << (__riscv_xlen - 1))
 
 /* Interrupt causes (minus the high bit) */
-#define IRQ_U_SOFT		0
 #define IRQ_S_SOFT		1
+#define IRQ_VS_SOFT		2
 #define IRQ_M_SOFT		3
-#define IRQ_U_TIMER		4
 #define IRQ_S_TIMER		5
+#define IRQ_VS_TIMER		6
 #define IRQ_M_TIMER		7
-#define IRQ_U_EXT		8
 #define IRQ_S_EXT		9
+#define IRQ_VS_EXT		10
 #define IRQ_M_EXT		11
 
 /* Exception causes */
 #define EXC_INST_MISALIGNED	0
 #define EXC_INST_ACCESS		1
+#define EXC_INST_ILLEGAL	2
 #define EXC_BREAKPOINT		3
 #define EXC_LOAD_ACCESS		5
 #define EXC_STORE_ACCESS	7
 #define EXC_SYSCALL		8
+#define EXC_HYPERVISOR_SYSCALL	9
+#define EXC_SUPERVISOR_SYSCALL	10
 #define EXC_INST_PAGE_FAULT	12
 #define EXC_LOAD_PAGE_FAULT	13
 #define EXC_STORE_PAGE_FAULT	15
+#define EXC_INST_GUEST_PAGE_FAULT	20
+#define EXC_LOAD_GUEST_PAGE_FAULT	21
+#define EXC_STORE_GUEST_PAGE_FAULT	23
+
+/* HSTATUS flags */
+#define HSTATUS_VTSR		_AC(0x00400000, UL)
+#define HSTATUS_VTVM		_AC(0x00100000, UL)
+#define HSTATUS_SP2V		_AC(0x00000200, UL)
+#define HSTATUS_SP2P		_AC(0x00000100, UL)
+#define HSTATUS_SPV		_AC(0x00000080, UL)
+#define HSTATUS_SPRV		_AC(0x00000001, UL)
+
+/* HGATP flags */
+#define HGATP_MODE_OFF		_AC(0, UL)
+#define HGATP_MODE_SV32X4	_AC(1, UL)
+#define HGATP_MODE_SV39X4	_AC(8, UL)
+#define HGATP_MODE_SV48X4	_AC(9, UL)
+
+#define HGATP32_MODE_SHIFT	31
+#define HGATP32_VMID_SHIFT	22
+#define HGATP32_VMID_MASK	_AC(0x1FC00000, UL)
+#define HGATP32_PPN		_AC(0x003FFFFF, UL)
+
+#define HGATP64_MODE_SHIFT	60
+#define HGATP64_VMID_SHIFT	44
+#define HGATP64_VMID_MASK	_AC(0x03FFF00000000000, UL)
+#define HGATP64_PPN		_AC(0x00000FFFFFFFFFFF, UL)
+
+#ifdef CONFIG_64BIT
+#define HGATP_PPN		HGATP64_PPN
+#define HGATP_VMID_SHIFT	HGATP64_VMID_SHIFT
+#define HGATP_VMID_MASK		HGATP64_VMID_MASK
+#define HGATP_MODE		(HGATP_MODE_SV39X4 << HGATP64_MODE_SHIFT)
+#else
+#define HGATP_PPN		HGATP32_PPN
+#define HGATP_VMID_SHIFT	HGATP32_VMID_SHIFT
+#define HGATP_VMID_MASK		HGATP32_VMID_MASK
+#define HGATP_MODE		(HGATP_MODE_SV32X4 << HGATP32_MODE_SHIFT)
+#endif
+
+/* VSIP & HIP relation */
+#define VSIP_TO_HIP_SHIFT	(IRQ_VS_SOFT - IRQ_S_SOFT)
+#define VSIP_VALID_MASK		((_AC(1, UL) << IRQ_S_SOFT) | \
+				 (_AC(1, UL) << IRQ_S_TIMER) | \
+				 (_AC(1, UL) << IRQ_S_EXT))
 
 /* symbolic CSR names: */
 #define CSR_CYCLE		0xc00
@@ -91,6 +141,28 @@ 
 #define CSR_SIP			0x144
 #define CSR_SATP		0x180
 
+#define CSR_VSSTATUS		0x200
+#define CSR_VSIE		0x204
+#define CSR_VSTVEC		0x205
+#define CSR_VSSCRATCH		0x240
+#define CSR_VSEPC		0x241
+#define CSR_VSCAUSE		0x242
+#define CSR_VSTVAL		0x243
+#define CSR_VSIP		0x244
+#define CSR_VSATP		0x280
+
+#define CSR_HSTATUS		0x600
+#define CSR_HEDELEG		0x602
+#define CSR_HIDELEG		0x603
+#define CSR_HIE			0x604
+#define CSR_HTIMEDELTA		0x605
+#define CSR_HTIMEDELTAH		0x615
+#define CSR_HCOUNTERNEN		0x606
+#define CSR_HTVAL		0x643
+#define CSR_HIP			0x644
+#define CSR_HTINST		0x64a
+#define CSR_HGATP		0x680
+
 #define CSR_MSTATUS		0x300
 #define CSR_MISA		0x301
 #define CSR_MIE			0x304