diff --git a/frontend/drivers/platform_ctr.c b/frontend/drivers/platform_ctr.c
index 3cccc7483e..1e336b42df 100644
--- a/frontend/drivers/platform_ctr.c
+++ b/frontend/drivers/platform_ctr.c
@@ -279,5 +279,6 @@ frontend_ctx_driver_t frontend_ctx_ctr = {
    NULL,                         /* get_powerstate */
    frontend_ctr_parse_drive_list,
    NULL,                         /* get_mem_total */
+   NULL,                         /* get_mem_free */
    "ctr",
 };
diff --git a/frontend/drivers/platform_darwin.m b/frontend/drivers/platform_darwin.m
index fb07cb50a5..0ff13d097e 100644
--- a/frontend/drivers/platform_darwin.m
+++ b/frontend/drivers/platform_darwin.m
@@ -682,5 +682,6 @@ frontend_ctx_driver_t frontend_ctx_darwin = {
    frontend_darwin_get_powerstate,
    frontend_darwin_parse_drive_list,
    NULL,                         /* get_mem_total */
+   NULL,                         /* get_mem_free */
    "darwin",
 };
diff --git a/frontend/drivers/platform_gx.c b/frontend/drivers/platform_gx.c
index 394fb1ded6..bfabbea6ab 100644
--- a/frontend/drivers/platform_gx.c
+++ b/frontend/drivers/platform_gx.c
@@ -502,5 +502,6 @@ frontend_ctx_driver_t frontend_ctx_gx = {
    NULL,                            /* get_powerstate */
    frontend_gx_parse_drive_list,
    NULL,                            /* get_mem_total */
+   NULL,                            /* get_mem_free */
    "gx",
 };
diff --git a/frontend/drivers/platform_linux.c b/frontend/drivers/platform_linux.c
index 8760a03c06..20c1a4ab6f 100644
--- a/frontend/drivers/platform_linux.c
+++ b/frontend/drivers/platform_linux.c
@@ -1888,6 +1888,13 @@ static uint32_t frontend_linux_get_mem_total(void)
    return pages * page_size;
 }
 
+static uint32_t frontend_linux_get_mem_free(void)
+{
+   long pages     = sysconf(_SC_AVPHYS_PAGES);
+   long page_size = sysconf(_SC_PAGE_SIZE);
+   return pages * page_size;
+}
+
 frontend_ctx_driver_t frontend_ctx_linux = {
    frontend_linux_get_env,       /* environment_get */
    frontend_linux_init,          /* init */
@@ -1923,6 +1930,7 @@ frontend_ctx_driver_t frontend_ctx_linux = {
    NULL,                         /* parse_drive_list */
 #endif
    frontend_linux_get_mem_total,
+   frontend_linux_get_mem_free,
 #ifdef ANDROID
    "android"
 #else
diff --git a/frontend/drivers/platform_null.c b/frontend/drivers/platform_null.c
index 3807e71fc1..b558e111c1 100644
--- a/frontend/drivers/platform_null.c
+++ b/frontend/drivers/platform_null.c
@@ -36,5 +36,6 @@ frontend_ctx_driver_t frontend_ctx_null = {
    NULL,                         /* get_powerstate */
    NULL,                         /* parse_drive_list */
    NULL,                         /* get_mem_total */
+   NULL,                         /* get_mem_free */
    "null",
 };
diff --git a/frontend/drivers/platform_ps3.c b/frontend/drivers/platform_ps3.c
index ed5292ee95..a9d436933d 100644
--- a/frontend/drivers/platform_ps3.c
+++ b/frontend/drivers/platform_ps3.c
@@ -540,5 +540,6 @@ frontend_ctx_driver_t frontend_ctx_ps3 = {
    NULL,                         /* get_powerstate */
    frontend_ps3_parse_drive_list,
    NULL,                         /* get_mem_total */
+   NULL,                         /* get_mem_free */
    "ps3",
 };
diff --git a/frontend/drivers/platform_psp.c b/frontend/drivers/platform_psp.c
index 94b9f008fd..4b3dc1cc40 100644
--- a/frontend/drivers/platform_psp.c
+++ b/frontend/drivers/platform_psp.c
@@ -405,6 +405,7 @@ frontend_ctx_driver_t frontend_ctx_psp = {
    frontend_psp_get_powerstate,
    frontend_psp_parse_drive_list,
    NULL,                         /* get_mem_total */
+   NULL,                         /* get_mem_free */
 #ifdef VITA
    "vita",
 #else
diff --git a/frontend/drivers/platform_qnx.c b/frontend/drivers/platform_qnx.c
index 3236b56aa2..41f6d3d785 100644
--- a/frontend/drivers/platform_qnx.c
+++ b/frontend/drivers/platform_qnx.c
@@ -85,5 +85,6 @@ frontend_ctx_driver_t frontend_ctx_qnx = {
    NULL,                         /* get_powerstate */
    NULL,                         /* parse_drive_list */
    NULL,                         /* get_mem_total */
+   NULL,                         /* get_mem_free */
    "qnx",
 };
diff --git a/frontend/drivers/platform_win32.c b/frontend/drivers/platform_win32.c
index e874d4fb20..d314192a8c 100644
--- a/frontend/drivers/platform_win32.c
+++ b/frontend/drivers/platform_win32.c
@@ -317,5 +317,6 @@ frontend_ctx_driver_t frontend_ctx_win32 = {
    frontend_win32_get_powerstate,
    frontend_win32_parse_drive_list,
    NULL,                           /* get_mem_total */
+   NULL,                           /* get_mem_free */
    "win32",
 };
diff --git a/frontend/drivers/platform_xdk.cpp b/frontend/drivers/platform_xdk.cpp
index cf89f525a2..2b4a76978c 100644
--- a/frontend/drivers/platform_xdk.cpp
+++ b/frontend/drivers/platform_xdk.cpp
@@ -1407,5 +1407,6 @@ frontend_ctx_driver_t frontend_ctx_xdk = {
    NULL,                         /* get_powerstate */
    frontend_xdk_parse_drive_list,
    NULL,                         /* get_mem_total */
+   NULL,                         /* get_mem_free */
    "xdk",
 };
diff --git a/frontend/frontend_driver.h b/frontend/frontend_driver.h
index c9b94a68d5..7cf0824d78 100644
--- a/frontend/frontend_driver.h
+++ b/frontend/frontend_driver.h
@@ -81,6 +81,7 @@ typedef struct frontend_ctx_driver
    enum frontend_powerstate (*get_powerstate)(int *seconds, int *percent);
    int  (*parse_drive_list)(void*);
    uint32_t (*get_total_mem)(void);
+   uint32_t (*get_free_mem)(void);
 
    const char *ident;