From: kettenis <kettenis@openbsd.org>
Date: Sun, 10 Aug 2008 13:55:19 +0000 (+0000)
Subject: Add hypervisor calls for the sun4v random number generator interface.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=7fee504fba06e5401c90d81c1c795f78e6f30a94;p=openbsd

Add hypervisor calls for the sun4v random number generator interface.
---

diff --git a/sys/arch/sparc64/include/hypervisor.h b/sys/arch/sparc64/include/hypervisor.h
index 6ef58b8d3d7..4172f1ecce4 100644
--- a/sys/arch/sparc64/include/hypervisor.h
+++ b/sys/arch/sparc64/include/hypervisor.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hypervisor.h,v 1.2 2008/07/21 13:30:04 art Exp $	*/
+/*	$OpenBSD: hypervisor.h,v 1.3 2008/08/10 13:55:19 kettenis Exp $	*/
 
 /*
  * Copyright (c) 2008 Mark Kettenis
@@ -41,6 +41,7 @@ int64_t	hv_mach_set_soft_state(uint64_t software_state,
  * CPU services
  */
 
+void	hv_cpu_yield(void);
 int64_t	hv_cpu_qconf(uint64_t queue, uint64_t base, uint64_t nentries);
 
 #define CPU_MONDO_QUEUE		0x3c
@@ -49,8 +50,6 @@ int64_t	hv_cpu_qconf(uint64_t queue, uint64_t base, uint64_t nentries);
 int64_t	hv_cpu_mondo_send(uint64_t ncpus, paddr_t cpulist, paddr_t data);
 int64_t	hv_cpu_myid(uint64_t *cpuid);
 
-void hv_cpu_yield(void);
-
 /*
  * MMU services
  */
@@ -146,6 +145,19 @@ int64_t	hv_pci_config_put(uint64_t devhandle, uint64_t pci_device,
 #define PCI_MAP_ATTR_READ  0x01		/* From memory */
 #define PCI_MAP_ATTR_WRITE 0x02		/* To memory */
 
+int64_t	hv_rng_get_diag_control(void);
+int64_t	hv_rng_ctl_read(paddr_t raddr, uint64_t *state, uint64_t *delta);
+int64_t	hv_rng_ctl_write(paddr_t raddr, uint64_t state, uint64_t timeout,
+	uint64_t *delta);
+
+#define RNG_STATE_UNCONFIGURED	0
+#define RNG_STATE_CONFIGURED	1
+#define RNG_STATE_HEALTHCHECK	2
+#define RNG_STATE_ERROR		3
+
+int64_t	hv_rng_data_read_diag(paddr_t raddr, uint64_t size, uint64_t *delta);
+int64_t	hv_rng_data_read(paddr_t raddr, uint64_t *delta);
+
 /*
  * Error codes
  */
diff --git a/sys/arch/sparc64/sparc64/hvcall.S b/sys/arch/sparc64/sparc64/hvcall.S
index dd27ee8496f..07f43bf5969 100644
--- a/sys/arch/sparc64/sparc64/hvcall.S
+++ b/sys/arch/sparc64/sparc64/hvcall.S
@@ -1,4 +1,4 @@
-/*	$OpenBSD: hvcall.S,v 1.2 2008/07/21 13:30:05 art Exp $	*/
+/*	$OpenBSD: hvcall.S,v 1.3 2008/08/10 13:55:19 kettenis Exp $	*/
 
 /*
  * Copyright (c) 2008 Mark Kettenis
@@ -80,6 +80,12 @@
 #define PCI_CONFIG_GET		0xb4
 #define PCI_CONFIG_PUT		0xb5
 
+#define RNG_GET_DIAG_CONTROL	0x130
+#define RNG_CTL_READ		0x131
+#define RNG_CTL_WRITE		0x132
+#define RNG_DATA_READ_DIAG	0x133
+#define RNG_DATA_READ		0x134
+
 #define API_SET_VERSION		0x00
 #define API_PUTCHAR		0x01
 #define API_EXIT		0x02
@@ -107,6 +113,12 @@ ENTRY(hv_mach_set_soft_state)
 	retl
 	 nop
 
+ENTRY(hv_cpu_yield)
+	mov	CPU_YIELD, %o5
+	ta	FAST_TRAP
+	retl
+	 nop
+
 ENTRY(hv_cpu_qconf)
 	mov	CPU_QCONF, %o5
 	ta	FAST_TRAP
@@ -321,8 +333,36 @@ ENTRY(hv_pci_config_put)
 	retl
 	 stx	%o1, [%g5]
 
-ENTRY(hv_cpu_yield)
-	mov	CPU_YIELD, %o5
+ENTRY(hv_rng_get_diag_control)
+	mov	RNG_GET_DIAG_CONTROL, %o5
 	ta	FAST_TRAP
 	retl
 	 nop
+
+ENTRY(hv_rng_ctl_read)
+	mov	%o2, %o4
+	mov	%o1, %o3
+	mov	RNG_CTL_READ, %o5
+	ta	FAST_TRAP
+	stx	%o1, [%o3]
+	retl
+	 stx	%o2, [%o4]
+
+ENTRY(hv_rng_ctl_write)
+	mov	RNG_CTL_WRITE, %o5
+	ta	FAST_TRAP
+	retl
+	 stx	%o1, [%o3]
+
+ENTRY(hv_rng_data_read_diag)
+	mov	RNG_DATA_READ_DIAG, %o5
+	ta	FAST_TRAP
+	retl
+	 stx	%o1, [%o2]
+
+ENTRY(hv_rng_data_read)
+	mov	%o1, %o2
+	mov	RNG_DATA_READ, %o5
+	ta	FAST_TRAP
+	retl
+	 stx	%o1, [%o2]