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kernel: facility for user-visible memory

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. map all objects named usermapped_*.o with globally visible
	  pages; usermapped_glo_*.o with the VM 'global' bit on, i.e.
	  permanently in tlb (very scarce resource!)
	. added kinfo, machine, kmessages and loadinfo for a start
	. modified log, tty to make use of the shared messages struct
This commit is contained in:
Ben Gras
2012-07-28 20:57:38 +00:00
parent 53a947167c
commit b6ea15115c
25 changed files with 209 additions and 64 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/minix/com.h
+3 -1
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@@ -459,7 +459,6 @@
# define GET_MONPARAMS 4 /* get monitor parameters */
# define GET_KENV 5 /* get kernel environment string */
# define GET_IRQHOOKS 6 /* get the IRQ table */
# define GET_KMESSAGES 7 /* get kernel messages */
# define GET_PRIVTAB 8 /* get kernel privileges table */
# define GET_KADDRESSES 9 /* get various kernel addresses */
# define GET_SCHEDINFO 10 /* get scheduling queues */
@@ -611,6 +610,9 @@
#define SVMCTL_MAP_PHYS_LEN m2_l2
#define VMMF_UNCACHED (1L << 0)
#define VMMF_USER (1L << 1)
#define VMMF_WRITE (1L << 2)
#define VMMF_GLO (1L << 3)
/* Values for SVMCTL_PARAM. */
#define VMCTL_CLEAR_PAGEFAULT 12
include/minix/ipc.h
+1
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@@ -168,6 +168,7 @@ int receive(endpoint_t src, message *m_ptr, int *status_ptr);
int send(endpoint_t dest, message *m_ptr);
int sendnb(endpoint_t dest, message *m_ptr);
int senda(asynmsg_t *table, size_t count);
int _minix_kernel_info_struct(struct minix_kerninfo **);
int _do_kernel_call(message *m_ptr);
include/minix/ipcconst.h
+1
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@@ -7,6 +7,7 @@
#define SENDREC 3 /* SEND + RECEIVE */
#define NOTIFY 4 /* asynchronous notify */
#define SENDNB 5 /* nonblocking send */
#define MINIX_KERNINFO 6 /* request kernel info structure */
#define SENDA 16 /* asynchronous send */
#define IPCNO_HIGHEST SENDA
include/minix/param.h
+1 -1
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@@ -27,7 +27,7 @@ typedef struct kinfo {
char param_buf[MULTIBOOT_PARAM_BUF_SIZE];
/* Minix stuff */
struct kmessages *kmess;
struct kmessages *kmessages;
int do_serial_debug; /* system serial output */
int serial_debug_baud; /* serial baud rate */
int minix_panicing; /* are we panicing? */
include/minix/syslib.h
-1
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@@ -168,7 +168,6 @@ int sys_umap_remote(endpoint_t proc_ep, endpoint_t grantee, int seg,
vir_bytes vir_addr, vir_bytes bytes, phys_bytes *phys_addr);
/* Shorthands for sys_getinfo() system call. */
#define sys_getkmessages(dst) sys_getinfo(GET_KMESSAGES, dst, 0,0,0)
#define sys_getkinfo(dst) sys_getinfo(GET_KINFO, dst, 0,0,0)
#define sys_getloadinfo(dst) sys_getinfo(GET_LOADINFO, dst, 0,0,0)
#define sys_getmachine(dst) sys_getinfo(GET_MACHINE, dst, 0,0,0)
include/minix/type.h
+18
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@@ -170,5 +170,23 @@ struct k_randomness {
} bin[RANDOM_SOURCES];
};
struct minix_kerninfo {
/* Binaries will depend on the offsets etc. in this
* structure, so it can't be changed willy-nilly. In
* other words, it is ABI-restricted.
*/
#define KERNINFO_MAGIC 0xfc3b84bf
u32_t kerninfo_magic;
u32_t minix_feature_flags;
u32_t flags_unused1;
u32_t flags_unused2;
u32_t flags_unused3;
u32_t flags_unused4;
struct kinfo *kinfo;
struct machine *machine;
struct kmessages *kmessages;
struct loadinfo *loadinfo;
} __packed;
#endif /* _TYPE_H */